Question

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

Answer 1

Just multiply the order pairs by 3. For example,

(2,0) times 3 = (6,0)

(3, -1) times 3 = (9,-3)

(-2,-5) times 3 = (-6, -15)