40 ! is the relation a function? select yes or no for each relation. 1. (−2,−4,−,1),and(8,9) 2. (−2,−4,−,−2),and(8,6) 3. (−2,−4,,−2),and(8,6) 4. (3,−−4,,−2),and(5,6)

1. Yes this is a function since the x coordinates do NOT repeat. Each x value leads to exactly one y value.

2. Same thing as problem 1. This is a function.

3. Same thing as the previous two problems. This is a function.

4. This is NOT a function because we have the input x = 3 lead to the outputs y = -9 and y = -2 at the same time. The input x = 3 must have exactly one output for a function to be possible.