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.

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