Answer:
b=8
Step-by-step explanation:
7b-7-8b=-15
Combine like terms
-b-7=-15
Add 7 on both sides
-b=-15+7
-b=-8
Divide by -1
b = 8
The answer to your question is option d as x is positive ( making it open up), and the vertex is (-3,-4)
Step-by-step explanation:
- 1736-8166x71662=8177103 :D
