State the domain and range of the following relation and determine if it is a function

Question

(3, 9) (-4, -9) (-4, -3) (7, -2) (5, -6) (-4, 113)

Answer 1

Domain is the X values and range is the y values. 

Domain {-4,3,5,7}

range {-9,-6,-3,-2,9,113}

It isn't a function bc there are multiple y values for the X value of -4.