Answer:

Step-by-step explanation:
hope this helps
Answer:
rotation of 270°
Step-by-step explanation:
Consider the coordinates of of preimage and image of ABC
A(1, 0 ) → A'*0, - 1 )
B(6, - 7 ) → B'(- 7, - 6 )
C(0, - 4 ) C'(- 4, 0 )
What we note is the x- coordinate of the image is the y- coordinate of the preimage and the y- coordinate of the image is the negative of the x- coordinate of the preimage, that is
(x, y ) → (y, - x )
This is equivalent to a counterclockwise rotation about the origin of 270°
Options on this certain question?
2 acute angles because all of the angles of the triangle must add up to 180 degrees. If you used 90 degrees already you only have 90 degrees left to make the other two angles.