Question

△J′K′L′ is the image of △JKL under a dilation through point C.

What scale factor was used in the dilation?

−5

−0.2

0.2

5

Answer 1

it is in fact -0.2

Explanation:

took test on k12

Answer 2

Look at the line segment for LK and L'K'

LK= 10 cm
L'K'= 2 cm

To get from 10 to 2 cm, divide by 5. This is the same as multiplying by 0.2, which makes the scale factor 0.2. However, notice how the lines for L'K' appear on the opposite side of point C compared to the line for LK. This makes the scale factor -0.2.

Final answer: -0.2