Question

Is the relation a function? Why or why not?

[(-3,-2), (-1,0), (1, 0), (5,-2)}
A No; the relation passes the vertical-line test.
B Yes; two domain values exist for range value - 2.
C Yes; only one range value exists for each domain value.
D No; two domain values exist for range value -2.

Answer 1

The answer is C). Yes; only one range value exists for each domain value