7
QuizMultiple Select
Dilations in the Coordinate Plane
Question 7 • SRC 2022 M/J Grade 8 Pre-Algebra Q1
The image of a triangle after it has been dilated with a center at the origin has vertices at (–12, 6), (6, –18), and . If the pre-image of , point A, has coordinates of (–18, 9) and the pre-image of , point C, has coordinates of (18, 12), which statements are true? Select 3 options.
Answer
A
The coordinates of are (27, 18).
B
The coordinates of are (12, 8).
C
The scale factor is 1.5.D
The scale factor is 0.75.E
The scale factor is .
F
The coordinates of B are (9, –27).G
The coordinates of B are (4, –12).