CPM Homework Help : AC Problem 7-106

Find the equation of the line with $x$ -intercept $(–4, 0)$ and y-intercept $\left(0, 9\right)$ .

Hint 1:

$y = mx + b$

Substitute the y-coordinate of the y-intercept for b in the equation.

Hint 2:

Find the slope using any method you like,
then substitute that value for $m$ to finish writing the equation.

Answer:

$\textit{y}=\frac{9}{4}\textit{x}+9$