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Algebra/slope-intercept equation with fractions

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Expert: - 1/5/2011


Question
Hi...I'm trying to graph the following slope-intercept equation, and can't remember how to do it with negative fractions.  Please help!
y=-4/7x-8

Answer
The general form of an equation is y = mx + b where m is the slope and b is the y intercept.
Thus, the line crosses the y-axis at -8 and has a slope of -4/7.  This slope means it goes down to the right.  Since it crosses the y-axis below the origin, it crosses the x-axis on the negative side.

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