Answer :
Answer:
Find the Derivative check the signs and figure it out
Derivative of the function is
8x+8
therefore now solve for x
which gives x = -1
now make a number line
and put the values of x smaller than -1 and bigger than -1
so if we put 0 we get positive 8
and of we put negative 2 we get = -8
so it goes from negative to positive which means its has a minimum point as the functions slope became negative to positive.
