Answer:
The coordinate of point B' is (-12, - 15)
Step-by-step explanation:
B(-4 , -5)
If B' is dilated about the origin with a scale factor of 3 then
x(B') = -4 * 3 = -12
and
y(B') = -5 * 3 = -15
So
B'( -12, -15)
The coordinate of point B' is (-12, - 15)