91Ó°ÊÓ

Graph each relation or equation and find the domain and range. Then determine whether the relation or equation is a function.

$\left\{\left(−5,2\right),\left(2,4\right),\left(1,1\right),\left(−5,−2\right)\right\}$

For Exercises 10-12, use the graph that shows how much Americans spent on doctors’ visits in some recent years.

11. Use your equation to predict the amount of 2005

Find $h\left(-2\right)$ if $h\left(x\right)=x^3+1$.

Graph each relation or equation and find the domain and range. Then determine whether the relation or equation is a function.

$y=2x+1$

For exercises 12 – 14, use the following information.

A downtown parking lot charges \(2 for the first hour and \)1 for each additional hour or part of an hour.

Use the graph to find the cost of parking there for $4\frac{1}{2}hours$.

Compare the quantity in Column A and the quantity in Column B. Then determine whether:

A. the quantity in Column A is greater,

B. the quantity in Column B is greater,

C. the two quantities are equal, or

D. the relationship cannot be determined from the information given.

m is an integer greater than 3.

Determine whether each relation is a function. Write yes or no.

Graph the line passing through the given point with the given slope

$ \text{(-2,2),-}\frac{1}{3}$

Find the x-intercept and the y-intercept of the graph of each equation. Then graph the equation.

$y-x=-9$

Determine the value of r so that the line through $\left(5,r\right)$ and $\left(2,3\right)$has slope$2.$