Find the Slope of a Line Given by its Equations
4K views · Oct 9, 2022 analyzemath.com
This video has three objectives: 1 - How to write the equation of a line in slope intercept form and identify the slope 2 - How to identify the equation of a horizontal line and hence determine its slope which is equal to zero 2 - How to identify the equation of a vertical line and hence determine its slope which is undefined More on the slope of lines at https://www.analyzemath.com/math_problems/slope_problems.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Find the x and y intercepts of Lines
13K views · Oct 9, 2022 analyzemath.com
This math video has three objectives: 1 - Find the x and y intercepts of lines of the form ax + by =c 2 - Find the y-intercept of a horizontal line 3 - Find the x-intercept of a vertical line More on the slope of lines at https://www.analyzemath.com/graphs_functions/x_y_intercepts.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Find the Point of Intersection of Two Lines
6K views · Oct 9, 2022 analyzemath.com
In this math video, we present the solution to the problem to find the point of intersection of two lines given by their equations. The problem is reduced to finding the solution to the system of equations made up of the equations of the two lines. More on the intersection of lines at https://www.analyzemath.com/stepbystep_mathworksheets/lines/intersection_of_lines.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Find the x - coordinate of a Point on a Line Given by its Eq...
2K views · Oct 9, 2022 analyzemath.com
In this math video, we explain how to find the x coordinate of a point whose y coordinate is equal to 3 and is on the line given by its equation 2x - 3 y = 4. More on equations of lines at https://www.analyzemath.com/line/equation-of-lines-questions-with-solutions.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Inequalities with Brackets and Fractions
1K views · Oct 8, 2022 analyzemath.com
This math video discusses how to solve inequalities involving brackets and also inequalities including fractions. The brackets are eliminated by expanding. Inequalities with fractions are multiplied by the LCM (lowest common multiple) of the denominators (LCD) Three examples are solved and the solution sets are presented in three different ways: 1 - using inequality symbols, 2 - graphically using the number line, 3 - using intervals. More on inequalities at https://www.analyzemath.com/math_videos/inequalities/solve-linear-inequalities.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Equations with Square Root
38K views · Oct 8, 2022 analyzemath.com
This video explains the math behind simplifying square roots included in equations. Reviews of the properties of the square root are first discussed. Then three examples are solved. More at https://www.analyzemath.com/Equations/equations_square_root.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Quadratic Equations Using Factoring and the Quadratic ...
16K views · Oct 8, 2022 analyzemath.com
This video is about solving quadratic equations using the method of factoring and also the quadratic formulas. Three examples are presented: Example 1 - the equation (x-1)(x+8) = 0 is in a factored form already and therefore solved in a few steps. Example 2 - the equation x(x - 1) = 1 is expanded and because it cannot be factored, is solved using the quadratic formulas that are reviewed in the video. Example 3: the equation 2x^2 + 6 x = 8 is first simplified by dividing all terms by 2 since all coefficients and the constant even numbers, written in standard form, factored and then solved. More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Equations with Fractions
7K views · Oct 4, 2022 analyzemath.com
This video first explains the steps to solve an equation with brackets. Then equations with fractions are solved following the steps: 1 - find the lowest common multiple of the denominators 2 - multiply all terms of the equations by the lowest common multiple of the denominators found in step 1. 3 - expand the brackets 4 - group like terms on each side of the equation 5 - isolate the terms with x on one side and the terms with number on the other side of the equation 6 - find the solution. More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Linear inequalities
4K views · Oct 3, 2022 analyzemath.com
Several examples, including inequalities with fractional expressions, are solved and the solution set is written using inequality symbols, intervals, and graphically on the number line. Great care is taken when multiplying or dividing both sides of an inequality by a NEGATIVE number when we must reverse the symbol of the inequality. More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com More grade 12 math practice at https://www.analyzemath.com/high_school_math/grade_12/grade-12-practice.html More grade 11 math practice at https://www.analyzemath.com/high_school_math/grade_11/grade-11-practice.html Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve 2 by 2 System of Equations by Elimination
204K views · Oct 3, 2022 analyzemath.com
This video shows how to solve systems of equations using the method of elimination. The two basic operations that may be used to rewrite the system of equations into an equivalent one (i.e.with the same solutions) are 1 - multiply equations by a constant and 2 - add/subtract equations. These operations are well explained and applied. Four examples are presented including a simple example to explain the idea of elimination, an example with completely different coefficients, an example with no solutions, and an example with an infinite number of solutions. Graphical interpretations of solutions are also included where the equations in the system of equations are graphed: A system with one solution corresponds to two lines intersecting at one point, a system with no solution corresponds to two parallel lines and hence no point of intersection and finally, a system with an infinite number of solutions where the given equations are equivalent and therefore represent one equation in two variables. More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com More grade 12 math practice at https://www.analyzemath.com/high_school_math/grade_12/grade-12-practice.html More grade 11 math practice at https://www.analyzemath.com/high_school_math/grade_11/grade-11-practice.html
Simplify Expressions with Radicals - Grade 9
3K views · Oct 3, 2022 analyzemath.com
Four objectives are covered in this video which is about simplifying expressions with radicals. 1 - Simplify expressions with unlike radicands 2 sqrt (8) - 4 sqrt (2) 2 - Simplify expressions with a composite radicand (2 +sqrt (12))/2 3 - Simplify expressions with a radical expression in the denominator 2 sqrt(3) + 6/sqrt(3) 4 - Simplify expressions with a radical expression using the conjugate 3 sqrt(5) - 1 / ( sqrt(5) - 2 ) More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Expand and Simplify Polynomials - Grade 9
14K views · Oct 3, 2022 analyzemath.com
This video is about expanding and simplifying polynomials. Two examples are presented Example 1 : -(-2x - 2)(-x+3) - (3x^2 + x - 2 ) Example 2 3(-x - 5)^2 - 4x (- x - 7 ) The above examples are solved with all the details starting with a review of multiplying monomials including multiplying exponentials with the same variables. Grouping monomials to simplify expressions is also reviewed. More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Simplify Exponents - Grade 9
7K views · Oct 3, 2022 analyzemath.com
The objective of this video is to discuss the use of the rules of exponents to simplify expressions with exponential functions. Three examples are presented: Example 1 : (2x^2)^2(3x)^2 Example 2: (10 x^4)^0 (3 x^4)^3 Example 3: (-4 x^4 y^2)^2 / ( 2 x y)^3 The main rules of exponents reviewed and used are: x^n x^m = x^{n+m} multiply terms with exponents x^n / x^m = x^{n-m} divide terms with exponents (x^n)^m = x^(n * m) raise terms with exponents to the power x^0 = 1 More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Simplify Rational Expressions - Grade 9
16K views · Oct 3, 2022 analyzemath.com
The objective of this video is to present solutions with detailed explanations on how to factor and simplify rational expressions. Simplifying is made simple only after factoring and therefore examples of factoring are also included. Examples presented a) (-3x+2)/(x-1) * (2x-2)/(3x - 2) b) ( (2n+3)(3n+15) ) / ( (n-5)(6n + 9) ) c) (2x^2 + x) / ( x(2x + 1) ) d) ( x^2 + 2x - 3) / ( (x+3)(2x-2) ) More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Evaluate and Simplify Expressions for Given Values of the Va...
46K views · Oct 3, 2022 analyzemath.com
In this video, the author presents ways and ideas on how to evaluate expressions including square root, absolute value, and rational expressions for given values of the variables. Examples Presented a) Evaluate \sqrt (x + 6) for x = -2 b) Evaluate | x + y - 10| for x = -4 and y = 3 c) Evaluate ( - x^3 + 1)/ 5 +(x^2 - 2)/2 for x = -2 More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Factor Algebraic Expressions - Grade 9
9K views · Oct 3, 2022 analyzemath.com
Three techniques of factoring are presented in this video and are listed with the examples used: 1 - Factoring by reverse distribution or common factor a) 4x - 16 b) 6 x^2 + 2 x Factoring using the difference of two squares c) x^2 - 9 d) 9x^2 - 16 y^2 Factoring trinomials e) x^2 - 4x - 5 f) (1/2) x^2 + x + (1/2) More at https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Find Increase Given the Percentage Increase
32K views · Oct 12, 2022 analyzemath.com
In this video, the author explains how to calculate the absolute increase of a population given the percentage increase of that population. The formula used is: Percent change = (New Population - Old Population) / Old population More on percentage problems at https://www.analyzemath.com/percent/percent_math_problems.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Find Equation of a Line From its Graph
2K views · Oct 11, 2022 analyzemath.com
In this video, the slope of a line is found using the rise and run through the line, then the equation of the line is found using the slope and a point on the line. More Similar Problems at https://www.analyzemath.com/line/find-equation-of-line-from-graph.html More on equations of lines at https://www.analyzemath.com/line/equation-of-lines-questions-with-solutions.html More practice https://www.analyzemath.com/middle_school_math/grade_9/grade-9-practice.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Solve Right Triangle
13K views · Oct 27, 2022 analyzemath.com
This video shows how to use trigonometric ratios and the Pythagorean theorem to solve three right triangle problems. In the first example, the hypotenuse and one angle are given. In the second example, the two sides that make the right angle are given and in the third example only the hypotenuse is given but the right triangle is an isosceles triangle. More advanced examples on right triangle problems at https://www.analyzemath.com/Trigonometry_problems/solve-right-triangle-problems.html More right triangles questions at https://www.analyzemath.com/trigonometry_questions/right_triangle.html More math videos at https://www.analyzemath.com/math-videos.html. More math problems with solutions at https://www.analyzemath.com Subscribe to my channel to get more videos on math for all levels https://www.youtube.com/channel/UC2cmvDflm86w7C_D7QmcOVA? sub_confirmation=1
Review the Graphs, Domains and Ranges of some of the Basic F...
9K views · Dec 29, 2022 analyzemath.com
This video is about the graphs, domains and ranges of some of the most basic functions, namely: y = x, y =absolute(x), y = x^2, y = square-root (x), y = 1/x and y = x^3.
Multiply Monomials
4K views · Dec 30, 2022 analyzemath.com
This video explains in detail the steps needed to multiply two or more monomials