Q:

If figure ABC is reflected across the line x = –3 to create figure A'B'C', which of the following will not be a vertex of figure A'B'C'?A(-5,5)B(-2,1)C(-6,-2)choices:A.(–4, 1)B.(–2, –7)C.(–1, 5)D.(0, –2)

Accepted Solution

A:
The answer to this question would be: B.(–2, –7)

When doing reflection with x=-3 the Y coordinate of the each point wouldn't have changed. The Y coordinate of point A=5, B=1 and C=-2. No coordinate have Y value of -7 as the point B option. The result of the reflection would be paired like this: 

B(-2,1) = (–4, 1) 
A(-5,5) = (–1, 5)
C(-6,-2) = (0, –2)