Please help :)
x y
2 4
4 8
5 10
7 14
8 16
Is this a function?

What percent of the circle below is shaded?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Which of the following exponential functions goes through the points (1, 6) and (2, 12)? f(x) = 3(2)x f(x) = 2(3)x f(x) = 3(2)−x f(x) = 2(3)−x