## Intermediate Algebra (6th Edition)

$y=-\frac{3}{8}x+\frac{5}{8}$
$m=\frac{\frac{7}{10}-\frac{4}{10}}{-\frac{1}{5}-\frac{3}{5}}$ $m=\frac{\frac{3}{10}}{\frac{-4}{5}}$ $m=-\frac{3}{8}$ Now that we have the slope, use an ordered pair to find the y-intercept. $y=-\frac{3}{8}x+b$ $\frac{4}{10}=-\frac{3}{8}(\frac{3}{5})+b$ $\frac{4}{10}=-\frac{9}{40}+b$ $b=\frac{25}{40}$ $b=\frac{5}{8}$ $y=-\frac{3}{8}x+\frac{5}{8}$