Line segment AB has endpoints at A(-4, 4) and B(8,8). a. Find its image after a dilation with a center at the origin and a scale factor of 42.
Give the coordinates of A and B below.
b. Using coordinate geometry, show that A'B' is
parallel to AB.
dinate geometry. show that A'B' = 1/2 AB.

no puedo ver esta imagen tampoco creo que tienes un error en tu pc

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180