Answer:
Line 6
Step-by-step explanation:
The graph intersects at (-5, 16) and (2, 2)
Because she needs to plug the x's back into the equation
so
or 
and
or
The answer to your question is 18% of 100 = 18
The function given is a line with one zero at the center (0,0)
I don't think that makes sence?.. maybe it is just me so sorry