Reflect the given triangle over the y-axis. Then translate 3 units vertically.

how do you do it?

1 answer

reflect: (x,y) → (-x,y)
up 3: (x,y) → (x,y+3)
so take each of you (x,y) pairs and apply the combination:
(x,y) → (-x,y) → (-x,y+3)