Okay I have 2 questions.

If $\displaystyle f(x)=2x^2+3x+5$

Find

https://newton.science.sfu.ca/cgi-bi...0%29%7D%7Bh%7D

and

If

$\displaystyle

f(x)=-(25/2x+3)

$

Find

https://newton.science.sfu.ca/cgi-bi...1%29%7D%7Bh%7D

Answers could be

A 2

B 3

C +infinity

D 1

E Does Not Exist

F 0

G 4

H None of the above

I've tried and asked my friends and no one knows how to start this.