How do you graph and convert #-3y = -12+x# into slope-intercept form?

1 Answer
Feb 22, 2016

You need a form like #y=mx+b# where #m# is the slope and #(0,b)# the #y#-intercept, so you have to get a single #y# to one side.

Explanation:

Divide both sides by #-3#

#(cancel(-3)*y)/cancel(-3)=(cancel(-3)*4)/cancel(-3)+x/-3#

Result:

#y=-1/3x+4#

You can graph this by noticing that
#y=4ifx=0->(0,4)#
#x=12ify=0->(12,0)#
And then draw a line trough these points.
graph{-1/3x+4 [-4.04, 15.96, -1.32, 8.68]}