Question

In the graph above, the coordinates of the vertices of TUV are T(4, 4), U(2, –2), and V(6, –2). If TUV is reflected across the y-axis to create T'U'V' what are the coordinates of U'

A.

(–6, –2)


B.

(–4, 4)


C.

(–2, –2)


D.

(–2, 2)

Answer 1

C... you are flipping it top and bottom, so only the x coordinate will change to its opposite

Answer 2

C. (-2, -2)

Explanation:

When reflecting an image across the y-axis, all the x-coordinates become the negative of what the originally were, meaning all the x-coordinates are multiplied with -1:

T(4, 4) → T'(-4, 4)

U(2, -2) → U'(-2, -2)

V(6, -2) → V'(-6, -2)

So the value of U' is (-2, -2).