Question

Which of the following represents a function?

A. x -10 -9 -4 -4
y
21 19 21 20
B.
X -10 -9 -4 2
y
21 19 27 21
C. X
D.
-10 -9 -10 2
y 21 21 27 20
x
y
-10 -9 -4 -9
21 19 21 20

Answer 1

A represents a function. I hope this is helpful