Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
1-3. Quiz
Continue to next subchapter

Exercise 2 Page 128

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

No, see solution.

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.

( -10, 2), ( - 8, 3), (-6,5), ( -8, 8), ( -10, 6) 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.