The x-values are evenly-spaced, so any linear function table will have constant differences between the y-values. Here are the y-differences for the different options:
A 1, 2, 4
B 1, -1, 3
C -1, -2, 1
D 5, 5, 5 . . . . this represents a linear function
Okay. The equation for a sphere's surface area is A = 4 * pi * r^2. Let's plug 5 in for r. I got 314 cm^2 is the surface area, but it always helps to double check work! Hope this helps!
