Which function is represented by the graph below?

f(x) = 3x
f(x) = 3x − 3
f(x) = 3x + 3
f(x) = 3(x + 3)

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

00

step-by-step explanation:

1. perpendicular

2. parallel

3. perpendicular