Respuesta :
Hello there!
__________________________
Hello there, I graphed it on my coordinate plane app, I hope that's what you needed.
__________________________
I’ll help with anything else you need!
I hope I helped
@X8lue83rryX

Answer:
Step 1: a = 1, b = -4
Step 2: x = 2, f(2) = -9
Step 4: (5,0) and (-1,0)
Step 6: f(0) = -5
On the graph the points plotted are (-1,0) , (0,-5) , (2,-9) , and (5,0)