Question

Segment DF is dilated from the origin to create Segment D'F' prime at D′ (0, 10) and F′ (7.5, 5).


What scale factor was segment DF dilated by?

A. 0.5
B. 0.75
C. 1.5
D. 2.5

Answer 1

im so confused... please help :')

Answer 2

calculate the lengths of D'F' and DF based on the endpoints and divide D'F' / DF

alternatively, you can graph D'F' and visually see how big D'F' is compared to DF

Answer 3

ohh, ok so

10/4 = 2.5
7.5/3 = 2.5

so the scale factor is 2.5 or D, correct?

Answer 4

yes

Answer 5

thank you!