Question

Determine whether the point at (-2, -16) is the location of a minimum or maximum, or a point of inflection for the function x^2 +4x - 12

Answer 1

find the derivative of the function , the derivative =0 then find x

Answer 2

whats the derivative of the function?

Answer 3

\[f \prime(x) =2x+4\]\[f \prime(x)=0\] then 2x+4=0
divide by 2
x+2=0
x=-2

Answer 4

u must know the derivative rules to find the derivative

Answer 5

ohhhh thank you!

Answer 6

the solution is not over yet

Answer 7

u must find the the second derivative
\[f \prime \prime (x)=2 \]
\[f \prime \prime (-2)=2 \]
2>0 then the point (-2,16) is minimum

Answer 8

got it ?

Answer 9

and u r welcome :D

Answer 10

ohh okay yes i get it, thank you again.

Answer 11

u r welcome again :D , anytime