Answer
$y=-\frac{7}{8}x+1$
Work Step by Step
The equation for a line defined by a point and slope is $y-y_{1}=m(x-x_{1})$ in which $m$ is the slope, which we can calculate from $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$, where $x_{1}$, $x_{2}$, $y_{1}$ and $y_{2}$ are the coordinates of given points, so therefore...
$m=\frac{1-8}{0-(-8)}=-\frac{7}{8}$
$y-1=-\frac{7}{8}(x-0)$
$y=-\frac{7}{8}x+1$
