Answer:
(-6,-3), (3,6), and (3,-3)
Explanation:
the triangle has 3 points: (-2,-1), (1,2), and (1,-1)
for (x,y) => (3x,3y)
then
(-2,-1) => (-6,-3)
(1,2) => (3,6)
(1,-1) => (3,-3)
so you should draw the triangle with 3 points: (-6,-3), (3,6), and (3,-3)