Step-by-step explanation:
use Pythagoras theorem,
Answer:
-3b - 2b + 7 = -15
-5b = -22
b = 22/5
and under this translation.
A translation in is a mapping T from to defined by , where is a fixed vector in .
From the problem we know that , so we need to find the values and such that , so and , thus and .
Then and
Therefore and . The triangles CAR and C'Q'R' are shown in the figure below.