CPM Homework Help : AC Problem 7-42

On graph paper, graph a line with $y$ -intercept $(0,−4)$ and $x$ -intercept $(3,0)$ . Find the equation of the line.

Hint:

Plot the two points and draw a line connecting them. Draw a slope triangle and find the rise over the run.

More Help:

Remember $y=mx+b$
Substitute the slope that you found for $m$ , and the $y$ -intercept (given) for $b$ .

Use the table in the eTool below to graph the line and find its equation.
Click the link at right for the full version of the eTool: 7-42 HW eTool