Regarding question 10 D ONLY What’s the best way to estimate these max and min values? This

Question

Regarding question 10. D ONLY:

What’s the best way to estimate these max and min values? This

question is from Advanced Functions so please do not provide a calculus answer.

Is there a way to estimate using vertex formula? Note that, my course has not taught vertex formula for some reason.

The max H is approx 35.3m above platform and the Min h is 5.1m below (book answer).

Thanks!

Math