Is the relation a function? Why or why not? {(–5, 7), (–2, –1), (0, 3), (4, 7)}

Yes; only one range value exists for each domain value.

No; two domain values exist for range value 7.

Yes; two domain values exist for range value 7.

No; the relation passes the vertical-line test.

Since you can only have 1 output for the inputs, the correct answer would be A- only one range value exists for each domain value.

Step-by-step explanation:

B. Yes; only one range value exists for each domain value.

Step-by-step explanation:

A relation is considered a function only if for each domain value (the values that x-variable takes) only one range value exists (the values that y-variable takes). In this case, the values taken by the x-variable are: -5, -2, 0 and 4; all in different points.

It doesn't matter that two domain values (or more) have the same range value.

2

step-by-step explanation:

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5+2x=a

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