4x + 5y = 20
5y = -4x + 20
y = (-4/5)x + 20/5
Now that the equation has been rewritten in standard form, the slope is the cofficient of x, -4/5 [or -0.8]
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20
y = -2x+10
Is the equation of a straight line with slope 2 and an intercept of (0,20).
Slope= -2/5 y-intercept is 20 x-intercept is 50
4x+2y = 20 2y = -4x+20 y = -2x+10