Possible solutions are functions yx drawn as solid curves. In the equation By -Ax C B needs to be distributed through the equation. To do this divide both sides by B.
Alsosince the line is horizontal every point on that line has the exact same y value.
Since the slope of a horizontal line is 0 the general formula for the standard form equation y mx b becomes y 0x b y b. R Hydraulic Radius ft S Channel Slope ftft Under the assumption of uniform flow conditions the bottom slope is the same as the slope of the energy grade line and the water surface slope. Quick tutorial on finding the slope from an equation. GoldD y_2 - y_1 y2.