Equation describes a sloping line. For any
equation ax+by+c = 0, slope is .- X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 21/-4 = -5.25.
- Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 21/3 = 7.
- Slope is --4/3 = 1.33333333333333.
- Equation in slope-intercept form: y=1.33333333333333*x+7.
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