Hi,

the standard point-slope form for an equation of a line y = mx + b  where m is the slope and b the y-intercept.  

5x+4y-20=0   Solving for 'y'to put the equation into the slope-intercept form

4y = -5x + 20

y = (-5/4)x + 5

slope = (-5/4) and the y intercept is 5.  Pt (0,5) a point on the line.

(0,5)  The slope tells us the change in y versus the change in x

(4,0) also a point of the line (As y decreases by five,x increases by 4)



 

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