McGraw Hill Glencoe Algebra 2, 2012
MH
McGraw Hill Glencoe Algebra 2, 2012 View details
Pretest
Continue to next subchapter

Exercise 1 Page P3

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

Is It a Function? Yes
Domain: { -3, 8, 14}
Range: { 1,4,6}

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.

(14,1), (- 3,6), (8,4) Examining the ordered pairs, we can see that there is no x-value with multiple y-values. Therefore, the relation is a function. Now let's look for the domain and range of the given coordinate pairs. The domain of a function is found by listing the relation's x-values. The range is found by listing the relation's y-values. Domain:& {- 3,8,14 } Range:& {1,4,6 }