Pearson Algebra 2 Common Core, 2011
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Pearson Algebra 2 Common Core, 2011 View details
1. Relations and Functions
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Exercise 13 Page 65

If a relation is a function, how many y-values can each x-value have?

Yes.

Practice makes perfect
For a relation to be a function, each x-value can only be paired with one y-value, but one y-value can be paired with multiple x-values.

(3,- 9), (11,21), (121,34), (34,1), (23,45) Examining the ordered pairs, we can see that there is no x-value with multiple y-values. Therefore, the relation is a function.