Question

A circle is graphed on a coordinate grid and then reflected across the x-axis. If the center of the original circle was located at (x, y), which ordered pair represents the center of the new circle after the transformation? *

(x, y)
(-x, y)
(x, -y)
(-x, -y)

Answer 1

x,-y

Explanation:

It cannot transform across x axis unless it goes down to negative y.

In a graph we have 4 areas to fit a description of reflect accross an axis.

As this was x axis it can only be reflection negative y or reverse.

We cannot reverse this as the object has the positive y side of x

The image is the reflection or the transformation, and so this image is now negative y.

x-y= x object | y image = positive x = negative y.

Answer 2

C (x,-y)

Explanation: