91Ó°ÊÓ

Graph the equations$y=2x,y=2$.

In the following exercises, use the mapping of the relation to (a) list the ordered pairs of the relation, (b) find the domain of the relation, and (c) find the range of the relation.

For a man of height $5′11′′$the mapping below shows the corresponding Body Mass Index (BMI). The body mass index is a measurement of body fat based on height and weight. A BMI of$18.5–24.9$ is considered healthy.

In the following exercises, use the graph of the relation to (a) list the ordered pairs of the relation (b) find the domain of the relation (c) find the range of the relation.

In the following exercises, use the graph of the relation to (a) list the ordered pairs of the relation (b) find the domain of the relation (c) find the range of the relation.

In the following exercises, use the graph of the relation to (a) list the ordered pairs of the relation (b) find the domain of the relation (c) find the range of the relation.

In the following exercises, use the graph of the relation to (a) list the ordered pairs of the relation (b) find the domain of the relation (c) find the range of the relation.

In the following exercises, use the set of ordered pairs to (a) determine whether the relation is a function, (b) find the domain of the relation, and (c) find the range of the relation.
$\left\{\left(−3,9\right),\left(−2,4\right),\left(−1,1\right),\left(0,0\right),\left(1,1\right),\left(2,4\right),\left(2,4\right)\right\}$

In the following exercises, use the set of ordered pairs to (a) determine whether the relation is a function, (b) find the domain of the relation, and (c) find the range of the relation.

$\left\{\left(9,−3\right),\left(4,−2\right),\left(1,−1\right),\left(0,0\right),\left(1,1\right),\left(4,2\right),\left(9,3\right)\right\}$

In the following exercises, use the set of ordered pairs to (a) determine whether the relation is a function, (b) find the domain of the relation, and (c) find the range of the relation.

$\left\{\left(−3,27\right),\left(−2,8\right),\left(−1,1\right),\left(0,0\right),\left(1,1\right),\left(2,8\right),\left(3,27\right)\right\}$

In the following exercises, use the set of ordered pairs to (a) determine whether the relation is a function, (b) find the domain of the relation, and (c) find the range of the relation.

$\left\{\left(9,−3\right),\left(4,−2\right),\left(1,−1\right),\left(0,0\right),\left(1,1\right),\left(4,2\right),\left(9,3\right)\right\}$