The coordinates of each vertex in the final image are A''(-2, 1) B''(-5, 4) C''(-1, 4)
Writing the coordinates of each vertex in the final image.
From the question, we have the following parameters that can be used in our computation:
The graph
Where, we have
A = (2, 4)
B = (8, 10)
C = (8, 2)
The rule of rotating a point by 90 degrees counterclockwise is
(x, y) = (-y, x)
So, we have
A' = (-4, 2)
B' = (-10, 8)
C' = (-2, 8)
When dilated by a scale factor of 2, the rule is
(x, y) = (x, y)/2
So, we have
A'' = (-2, 1)
B'' = (-5, 4)
C'' = (-1, 4)
Hence, the final image is A''(-2, 1) B''(-5, 4) C''(-1, 4)