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How do I write an equation in slope intercept form from; Slope 3, y-intercept at -4

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Alexzecharid
slope-intercept form is y=mx+b
the y-intercept is b
the slope is m
enter these in, and you have y=3x-4
AL2006id
The slope-intercept form of the equation for a line is

y = (slope) x + (intercept).    <== THIS is the important thing to remember.

You already have both numbers to plug into that form.
The equation of your line is
                                                   y = 3x - 4

That's all there is to it.

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