Answer:
Step-by-step explanation:
The second graph is the right one. Note that when x = 1, y (the maximum) is 4, and that the x-intercepts are -3 and 1.
the second graph
a = 4
2a + 7 = 15
- 7 - 7
2a = 8
/2 /2
Hope this helps!
6.9 x 103