Real math help.
How Do You Use a Graph to Reflect a Figure Over the Y-Axis?
Note:
Reflecting a figure over the y-axis can be a little tricky, unless you have a plan. In this tutorial, see how to use the graph of a figure to perform the reflection. Check it out!
Background Tutorials
-
Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.
-
What is a Reflection?
When you look in the mirror, you see your reflection. In math, you can create mirror images of figures by reflecting them over a given line. This tutorial introduces you to reflections and shows you some examples of reflections. Take a look!
-
-
Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
-
What is a Line of Reflection?
Just about everything in math has a name! Did you know that the line you reflect a figure over has a special name? It's called the line of reflection! Watch this tutorial and learn about the line of reflection.
-
-
Represent transformations in the plane using, e.g., transparencies and geometry software; describe transformations as functions that take points in the plane as inputs and give other points as outputs. Compare transformations that preserve distance and angle to those that do not (e.g., translation versus horizontal stretch).
-
What is an Image?
Just about everything in math has a name! Did you know that when you're dealing with transformations, the new figure you get is called an image? Check out this tutorial and learn about this math term!
-
Further Exploration
-
Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
-
How Do You Use Coordinates to Reflect a Figure Over the Y-Axis?
Want to see how to reflect a figure over the y-axis? Then this tutorial was made for you! In this tutorial, you'll see how to use coordinates from the original figure to reflect the figure over the y-axis. Take a look!
-
