Question

A rectangle with vertices located at (1,2), (1,5), (3,5), and (3,2) is stretched horizontally by a factor of 3 with respect to the y-axis. What is the area of the image that is produced

Answer 1

18 square units

Explanation:

The given rectangle has an x-dimension of 3-1 = 2, and a y-dimension of 5-2 = 3. Stretching the x-dimension by a factor of 3 will multiply it to ...

2×3 = 6

and give you a rectangle 6 units wide by 3 units high. Its area will be ...

(6 units)(3 units) = 18 units²