How much water can be held by a cylindrical tank with a radius of 12 feet and a height of 30 feet?

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

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value