A is the correct answer
Or
Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of
symmetry is x = -5
Divide the top number by the bottom number
Answer:
B. 
Step-by-step explanation:
I graphed this function on the graph below and it matched the graph you have.
ACUTE ANGLE.
this is because the angle is less than 90 degree and greater than 0 degree
200% bc it went up 2x as much as it cost before