Which interval for the graphed function contains the local minimum of 0
a.) [-3,2]
b.) [-2,0]
c.) [1,2]
d.) [2,4]

the answer is [0,2] . I know because I just took the test.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2