Question

Graph the image of triangle UVW after a reflection across the line x = -1
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Answer 1

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Answer:

see attached

Explanation:

Reflection over the line x = -1 alters the x-coordinates, but leaves the y-coordinates alone. The image point is as far horizontally from the reflection line as the pre-image point is.

Each new x-coordinate is the old one subtracted from twice the x-value of the line of reflection:

(x, y) ⇒ (-2-x, y)

U(-8, -6) ⇒ U'(6, -6)

V(-3, -6) ⇒ V'(1, -6)

W(-4, -1) ⇒ W'(2, -1)