C because the highest and lowest Y values are at -7 and 4.
The answer is x=7. I hope this helps. Tell me if you need an explanation!
Step-by-step explanation:
x⁴(4x+1)
4x⁵+x⁴
degree is 5
1.25 + 0.75x = 14
Solving for x gives the answer of 17. Thus, Henri can afford to travel 17 miles.
