See how many others chose something else then graph it.
Answer:
87.5
Step-by-step explanation:
By completing the square,
y
=-14x^2+70x
=-14(x^2-5x)
=-14(x-5/2)^2+175/2
the max. height=175/2
i.e. 87.5
You take three fourths of 270 and add it to 270. 270 + 67.5 = 337.5
