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OpenStudy (anonymous):
Graph the linear by finding intercepts if possible. 4x+5y= 20
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Directrix (directrix):
4x+5y= 20 5y = 20 -4x y = 4 -(4/5)x y-intercept has coordinates (0,4) To get the x-intercept, y has to be 0. 5(0) = 20 - 4x 0 = 20 -4x -20 = -4x 5 = x x-intercept has coordinate (5,0) Plot (5,0) and ((0,4) and the two points (intercepts) will determine the line.
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