2
QuizMultiple Choice
Dilations
Question 2 of 5 • SRC 2022 M/J Grade 8 Pre-Algebra Q1
Issouf claims that the scale factor is . Which statement about his claim is correct?
Answer
A
He is correct because CB is 4 and C’B’ is 2. The scale factor is .
B
He is correct because he needs to subtract 2 from each side. A reduction has a scale factor that is a fraction, so it must be .
C
He is incorrect because it is 3. CB is actually 2 + 4 or 6. So one needs to multiply the pre-image length by 3 to get the image; 3 is the scale factor.D
He is incorrect because the scale factor is . CB is actually 2 + 4 = 6. CB is the pre-image, so the scale factor is .