The vertices of δabc are (-2,0), (-2, 3), and (-5, 1). t(x,y) = (x + 1, 3y) represents

using the equation for the transformation:

(x+1, 3y)

 add 1 to very X and multiply y by 3

 so (-2,0) becomes (-1,0)

(-2,3) becomes (-1,9)

(-5,1) becomes (-4,3)

new coordinates are (-1,0) (-1,9) (-4,3)

you don't have an image attached, so to see if they are congruent, the sides need to stay the same lengths and the angles need to stay the same, from the coordinates of the new triangle, I would say they are not congruent

C.) pi/4

Step-by-step explanation:

Edg 2020, answered the question and got it right :)