SOLUTION: What if I have x-y=-3 I dont understand

Question 801572: What if I have x-y=-3
I dont understand
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

if you have , means you have an equation of a line
you can solve it for
.....add to both sides

....add to both sides

or .....this is equation of a line in slope-intercept form where and
in your case and
so, your line has positive slope, means goes through I and III quadrant
it also crosses y-axis at point (,)
we need one more point to graph it:
let's find intercept if

so, intercept is at (,)

see it on a graph:

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