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Algebra I Help: Solving Systems of Linear Equations Part II Graphing 2/3
By yourteachermathhelp
The instructor uses a white board for demonstration and this video is suitable for high school students. Students learn to solve a system of linear equations by graphing. The first step is to graph each of the given equations then find the point of intersection of the two lines which is the solution to the system of equations. If the two lines are parallel then the solution to the system is the null set. If the two given equations represent the same line then the solution to the system is the equation of that line.
Slope-intercept equation from two solutions example | Algebra I | Khan Academy
By Khan Academy
Find the equation of a line given two points, neither of which is the y-intercept. To do this, first find the slope, then you may either graph the line (as is done here), or plug in one of the points in for "x" and "y" into y = mx + b to solve for "b."
Inverse Functions | MathHelp.com
By MathHelp.com
In this example, we’re given a relation in the form of a chart, and we’re asked to find the inverse of the relation, then graph the relation and its inverse. To find the inverse of a relation, we simply switch the x and y values in each point. In other words, the point (1, -4) becomes (-4, 1), the point (2, 0) becomes (0, 2), the point (3, 1) becomes (1, 3), and the point (6, -1) becomes (-1, 6). Next, we’re asked to graph the relation and its inverse, so let’s first graph the relation. Notice that the relation contains the points (1, -4,), (2, 0), (3, 1), and (6, -1). And the inverse of the relation contains the points (-4, 1), (0, 2), (1, 3), and (-1, 6). Finally, it’s important to understand the following relationship between the graph of a relation and its inverse. If we draw a diagonal line through the coordinate system, which is the line that has the equation y = x, notice that the relation and its inverse are mirror images of each other in this line. In other words, the inverse of a relation is the reflection of the original relation in the line y = x.
ALL OF GRADE 9 MATH IN 60 MINUTES!!! (exam review part 2)
By Lumos Learning
Here is a great exam review video reviewing all of the main concepts you would have learned in the MPM1D grade 9 academic math course. The video is divided in to 3 parts. This is part 2: Linear Relations. In this video you will review everything there is to know about y=mx+b, scatterplots, and distance time graphs.
12 - Solving 3-Variable Linear Systems of Equations - Substitution Method
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
01 - Direct Variation and Proportion in Algebra - Part 1 (Constant of Variation & More)
By Math and Science
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05 - Quadratic Systems of Equations (With Lines, Circles, Ellipses, Parabolas & Hyperbolas)
By Math and Science
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06 - Equations & Definition of Conic Sections - Circle, Ellipse, Parabola & Hyperbola
By Math and Science
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Geometry Introduction - Basic Overview - Review For SAT, ACT, EOC, Midterm Final Exam
By The Organic Chemistry Tutor
08 - Solving Exponential Equations - Part 1 - Solve for the Exponent
By Math and Science
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Finding The Focus and Directrix of a Parabola - Conic Sections
By The Organic Chemistry Tutor
This video tutorial provides a basic introduction into parabolas and conic sections. It explains how to graph parabolas in standard form and how to graph parabolas with the focus and directrix. The vertex of the parabola can be identified by analyzing the equation in standard form.
16 - Conjugate Root Theorem, Part 1 (Roots of Polynomials, Solving Polynomials & Conjugate Roots)
By Math and Science
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How To Graph Trigonometric Functions
By The Organic Chemistry Tutor
This trigonometry video tutorial explains how to graph sine and cosine functions using transformations, horizontal shifts / phase shifts, vertical shifts, amplitude, and the period of the sinusoidal function. This video contains many examples and practice problems on graphing trigonometric functions for you to master this topic.
13 - Conic Sections: Parabola, Focus, Directrix, Vertex & Graphing - Part 1
By Math and Science
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12 - Writing Quadratic Functions in Vertex Form - Part 1 (Graphing Parabolas)
By Math and Science
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09 - Practice Graphing Parabolas - Part 1 (Vertex Form & Standard Form)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Writing Equations of Ellipses In Standard Form and Graphing Ellipses - Conic Sections
By The Organic Chemistry Tutor
This algebra video tutorial explains how to write the equation of an ellipse in standard form as well as how to graph the ellipse when in standard form. It explains how to find the coordinates of the foci, vertices, and co-vertices. This video contains plenty of examples and practice problems.