Consider the dilation.

Pre-image: A(−1, 3)A(−1, 3) , B(2, 1)B(2, 1) , and C(4, −3)C(4, −3)

Image: A′(−2, 6)A′(−2, 6) , B′(4, 2)B′(4, 2) , and C′(8, −6)C′(8, −6)

Is the dilation an expansion or contraction? What is the scale factor?

Question

Consider the dilation.

Pre-image:  A(−1, 3)A(−1, 3) ,  B(2, 1)B(2, 1) , and  C(4, −3)C(4, −3)

Image:  A′(−2, 6)A′(−2, 6) ,  B′(4, 2)B′(4, 2) , and  C′(8, −6)C′(8, −6)

Is the dilation an expansion or contraction? What is the scale factor?

saksh1998 · Answer

it would be an expansion and for the scale factor take out the distance of any one side before and after expansion and divide the after image by pre image and u will get the factor
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