Question

Triangle PQR has vertices P(–2, 6), Q(–8, 4), and R(1, –2). It is translated according to the rule (x, y) → (x – 2, y – 16).

What is the y-value of P'?

The y-value of P' is _____

Answer 1

-10

Explanation:

took the test

Answer 2

Translation (x,y) ⇒ (x-2, y-16) means the triangle PQR is translated two units to the left and sixteen units down.

Each x-vertices will move two units left and y-vertices will move 16 units down

P(-2, 6) ⇒ (-2-2, 6-16) ⇒ (-4, -10)

Hence y-coordinate of the image of P is -10