you need (x,y) pairs where no x is used twice.
So, if there is no y, then it's not a function.
Which equations represent functions? More then one answer.
A. 2x + 3y = 10
B. 4x = 16
C. 2x − 3 = 14
D. 3y = 18
E. 14.6 = 2x
1 answer