Question

Given the function f(x) = -2x + 8, find x if f(x) = 22.
Answer







-15








-36








-7








52

A ?

Answer 1

-2x+8=22
x=-7

Answer 2

we have to find the derivate 1st

Answer 3

o sorry there is no need

Answer 4

derivative???

Answer 5

whats that ?

Answer 6

just put the value of f(x)
22=-2x+8
-14/2=x
x=-7

Answer 7

so i just put in every value in x till i get it correct ?