Question

The endpoints of AB are A(9, 4) and B(5, –4). The endpoints of its image after a dilation are A'(6, 3) and B'(3, –3). Explain how to find the scale factor.

Answer 1

\[Scale\ factor = \frac{ old\ length }{ new\ length }\]

Answer 2

A(9, 4) B(5, –4)
A'(6, 3) B'(3, –3)
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3,1 2,-1
1/3 -1/2 ...Like that?

Answer 3

No. Use the distance formula to find the lengths of AB and A'B'

Answer 4

O thanks, got it.