How do you find the slope and intercept of 12x+4y-2=012x+4y2=0?

1 Answer
Apr 19, 2018

Slope=m=-3=m=3

y-yintercept=b=1/2=b=12

Explanation:

Solve the equation for y:y:

12x+4y-2=012x+4y2=0

Add 22 to both sides:

12x+4y=212x+4y=2

Subtract 12x12x from both sides:

4y=2-12x4y=212x

Divide 44 from both sides:

y=(2-12x)/4y=212x4

Simplify:

y=1/2-3xy=123x

y=-3x+1/2y=3x+12

This last equation is now in y=mx+by=mx+b form where

mm is the slope (the coefficient of the variable xx)

bb is the y-yintercept or the constant

From the equation:

y=-3x+1/2y=3x+12

Slope=m=-3=m=3

y-yintercept=b=1/2=b=12