On a coordinate plane, a triangle is shown. It has points A prime (4, 2), B prime (8, negative 8), and C prime (4, negative 8). What is the pre-image of vertex A' if the rule that created the image is ry-axis(x, y) → (–x, y)?

A(–4, 2)
A(–2, –4)
A(2, 4)
A(4, –2)

The answer for this question would be A(-4,2) because the preimage of 4,2 would be A(-4,2).

The measure of the angle is

Step-by-step explanation:

we know that

The formula to calculate the arc length of a circle is equal to

where

r is the radius of the circle

is the measure of the angle in radians

In this problem we have

substitute in the formula and solve for