Which function has an inverse that is also a function?
{(-1, -2), (0, 4), (1,3), (5, 14), (7,4)}
{(–1, 2), (0, 4), (1,5), (5, 4), (7, 2)}
{(-1,3), (0,4), (1, 14), (5, 6), (7, 2)}
{(-1,4), (0, 4), (1, 2), (5, 3), (7, 1)}

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.