Question

triangle △abc is the image of △abc under a dilation. what is the scale factor of the dilation?

Explanation:

Step1: Identify corresponding sides

Choose AB (original) and A'B' (image), both horizontal.

Step2: Measure lengths

AB spans 2 grid units; A'B' spans 4 grid units.

Step3: Calculate scale factor

Scale factor = Image length / Original length = 4/2 = 2.

Answer:

2