Chapter 8: Linear Functions

Identify the domain and range of the relation.

Solve the inequality. Graph the solution.

Copy and complete using always, sometimes, or never: A relation is ? a function.

Tell whether the ordered pair is a solution of the equation.

$y=x-3;\left(1,-4\right)$

Solve the inequality. Graph the solution.

Represent the relation as a graph and as a mapping diagram. Then tell whether the relation is a function. Explain your reasoning.

$\left(1,2\right),\left(2,1\right),\left(3,0\right),\left(3,4\right),\left(4,3\right)$

Tell whether the ordered pair is a solution of the equation.

$y=-4x+9;\left(3,-3\right)$

Tell whether the ordered pair is a solution of the equation.

Represent the relation as a graph and as a mapping diagram. Then tell whether the relation is a function. Explain your reasoning.

$\left(0,4\right),\left(2,0\right),\left(6,-4\right),\left(-4,2\right),\left(8,0\right)$

Tell whether the ordered pair is a solution of the equation.