How do you find the slope of 5x+2y=-20?

2 Answers
Mar 19, 2018

-a/b ,-5/2

Explanation:

The standard form of a line is ax+by+c=0. If you were to change this into slope-intercept form, y=mx+b, your m would be the slope. The change from standard to slope-intercept form is as follows.
ax+by+c=0
by=-ax-c
y=-a/bx-c/b
b_"slope-intercept"=-c/b
m=-a/b

This can be used to quickly find the slope or y-intercept of a line in standard form.

Mar 19, 2018

the slope is -5/2

Explanation:

as, y=mx+c

5x+2y=-20
2y=-5x-20
y=-5/2x-10
compare with y=mx+c
m=-5/2