Question

Triangle ABC is dilated about the origin with a scale factor of 3.

In triangle A'B'C', the coordinates of B' will be located at...
A. (-12, 15)
B. (-3, -15)
C. (21, -6)
D. (12, -15)

Answer 1

To find the coordinates of B' after a dilation of triangle ABC with a scale factor of 3, the coordinates of B (x, y) are multiplied by the scale factor, resulting in (3x, 3y). The correct answer is D. (12, -15).

Step-by-step explanation:

To find the coordinates of B' after a dilation of triangle ABC with a scale factor of 3, we multiply the coordinates of B (x, y) by the scale factor.

So, the coordinates of B' are (3x, 3y).

Therefore, the correct answer is D. (12, -15).