You have the following points for the vertex of the triangle IJK:
I(0,4)
J(4,-2)
K(-4,-2)
if the figure is dilated by a scale factor of 3/2, the previous point become:
I'(0, 4(3/2)) = I'(0, 6)
J'(4(3/2) , -2(3/2)) = J'(6 , -3)
K'(-4(3/2) , -2(3/2)) = K'(-6 , -3)
