Answer:
Sketch the following three graphs:
1) y = (x - 5)²
2) y = -(x - 5)²
3) y = x - 5
First two are parabolas with vertex at (5,0)
Third one is a line which intersects both the parabolas as (5,0)
Hi!! so here i’ll explain: for the first one, a times 3 is 3a. so you have 3a=-30. then you divide both sides by 3 and you have a=-10!! do the same for the rest, hope this helps