What is the equation of the following graph in vertex form?

An equation where variables are used to represent known values—function notation true or false

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.

Which of the following is not a subset of {1,2,3}?