What is the y-intercept of #x - 2y = -6#?

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Answer 1 · 2015-05-21T22:45:37

To find the y-intercept, I need to put this equation into slope-intercept form (well, I don't need to, but it makes it a lot easier).

#x - 2y = -6#

#-2y = -x - 6#

(now I can multiply both sides by -1 to get a fully positive equation)

#2y = x + 6#

#y = (x+6)/2#

#y = 1/2x + 6/2#

#y = 1/2x + 3#

So, the y-intercept is 3.