# How do you find the slope given -2x-7y=21?

$- \frac{2}{7}$

#### Explanation:

Given equation of straight line: $- 2 x - 7 y = 21$

$y = - \frac{2}{7} x - 3$

Comparing above equation with the slope-intercept standard form of straight line: $y = m x + c$ we get

$m = - \frac{2}{7}$ & $c = - 3$

hence, the slope of given line is $m = - \frac{2}{7}$