Question

Triangle ABC has points A(4,2) B(4,4) & C (0,4). If triangle ABC is dilated by a scale factor of 3 from the point (-1, 2) to create triangle A’B’C, what will be the coordinates of A’ ?

Answer 1

9514 1404 393

Answer:

A'(14, 2)

Explanation:

The y-value of A is the same as the y-value of the center of dilation, so it remains unchanged.

The x-value of A is 4-(-1) = 5 units from the center of dilation, so A' will be 15 units from the center of dilation. 15 +(-1) = 14. The coordinates of A' are (14, 2).