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This page provides a list of educational videos related to Reflecting Points. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Reflecting Points.
Reflecting points on the coordinate plane
By Khan Academy
Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis. Watch this tutorial and reflect :)
Reflecting points on the coordinate plane
By Khan Academy
Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis. Watch this tutorial and reflect :)
Reflecting points on the coordinate plane
By Khan Academy
Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis. Watch this tutorial and reflect :)
Reflecting points on the coordinate plane
By Khan Academy
Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis. Watch this tutorial and reflect :)
Reflecting points on the coordinate plane
By Khan Academy
Just like looking at a mirror image of yourself, but flipped....a reflection point is the mirror point on the opposite axis. Watch this tutorial and reflect :)
Ratio tables
By Khan Academy
In this example we'll plot points on the x and y axis to reflect the given ratios.
Ratio tables
By Khan Academy
In this example we'll plot points on the x and y axis to reflect the given ratios.
Ratio tables
By Khan Academy
In this example we'll plot points on the x and y axis to reflect the given ratios.
Ratio tables
By Khan Academy
In this example we'll plot points on the x and y axis to reflect the given ratios.
Ratio tables
By Khan Academy
In this example we'll plot points on the x and y axis to reflect the given ratios.
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.
Symmetry of two-dimensional shapes
By Khan Academy
Sal solves the following problem: Two of the points that define a certain quadrilateral are (0,9) and (3,4). The quadrilateral has reflective symmetry over the line y=3-x. Draw and classify the quadrilateral.
Symmetry of two-dimensional shapes
By Khan Academy
Sal solves the following problem: Two of the points that define a certain quadrilateral are (-4,-2) and (0,5). The quadrilateral has a������������reflective symmetry over the lines y=x/2 and������������y=-2x + 5.������������Draw and classify the quadrilateral.
Inverse Relations | MathHelp.com
By MathHelp.com
Here we’re asked to solve for x in the equation: log base x of 144 = 2. Notice that we have a logarithmic equation, so let’s first convert the equation to exponential form. Remember that the base of the log represents the base of the power, the right side of the equation represents the exponent, and the number inside the log represents the result, so we have x…squared…= 144. Now, to solve for x, since x is squared, we simply take the square root of both sides of the equation to get x = plus or minus 12. Remember to always use plus or minus when taking the square root of both sides of an equation. However, notice that x represents the base of the logarithm in the original problem, and the base of a logarithm cannot be negative. Therefore, x cannot be equal to negative 12. So our final answer is x = 12.
Systems of Three Equations | MathHelp.com
By MathHelp.com
Here we’re asked to graph the following function and use the horizontal line test to determine if it has an inverse. And if so, find the inverse function and graph it. So let’s start by graphing the given function, f(x) = 2x – 4, and remember that f(x) is the same as y, so we can rewrite the function as y = 2x – 4. Now, we simply graph the line y = 2x – 4, which has a y-intercept of -4, and a slope of 2, or 2/1, so we go up 2 and over 1, plot a second point and graph our line, which we’ll call f(x). Next, we’re asked to use the horizontal line test to determine if the function has an inverse. Since there’s no way to draw a horizontal line that intersects more than one point on the function, the function does have an inverse. So we need to find the inverse and graph it. To find the inverse, we switch the x and the y in original function, y = 2x – 4, to get x = 2y – 4. Next, we solve for y, so we add 4 to both sides to get x + 4 = 2y, and divide both sides by 2 to get 1/2x + 2 = y. Next, let’s flip our equation so that y is on the left side, and we have y = 1/2x + 2. Finally, we replace y with the notation that we use for the inverse function of f, as shown here. And remember that we’re asked to graph the inverse as well, so we graph y = ½ x + 2. Our y-intercept is positive 2, and our slope is ½, so we go up one and over 2, plot a second point, graph the line, and label it as the inverse function of f. Notice that the graph of the inverse function is a reflection of the original function in the line y = x.
Transformations of Functions
By The Organic Chemistry Tutor
This precalculus video tutorial provides a basic introduction into transformations of functions. It explains how to identify the parent functions as well as vertical shifts, horizontal shifts, vertical stretching and shrinking, horizontal stretches and compressions, reflection about the x-axis, reflection about the y-axis, reflections about the origins and more. Parent functions include absolute value functions, quadratic functions, cubic functions, and radical functions. This video contains plenty of examples on graphing functions using transformations.
13 - Conic Sections: Parabola, Focus, Directrix, Vertex & Graphing - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!