Graph The triangle shown is a pre-image. Apply a scale factor of 1/2 to find the image of point A. (0, 0) (3, –2.5) (0, –2.5) (0, –10)

Question

asked May 2, 2019 154k views

2 Answers

Jar Yit · Answer 1 · 2019-05-07T07:50:11+0000

Answer:

Correct choice is C

Explanation:

A dilation by a factor
(1)/(2) with the center of dilation at origin has the rule:

$(x,y)\mapsto \left((x)/(2),(y)/(2)\right).$

If pre-image point A has coordinates (0,-5) (from the diagram), then the image point A' will have coordinates

$\left((0)/(2),(-5)/(2)\right)=\left(0,-2.5\right).$