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 3 Page 64

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

No.

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, - 8), (- 9,1), ( 3, 2), (- 4,1), (- 11,- 2) Examining the ordered pairs, we can see that there is at least one x-value with multiple y-values. Therefore, the relation is not a function.