SOLUTION: derive the slope-intercept form of a linear equation from the slope formula using (o,b) as the coordinates of the point where the line crosses the y-axis and arbitrary point (x,y).

Question 99250: derive the slope-intercept form of a linear equation from the slope formula using (o,b) as the coordinates of the point where the line crosses the y-axis and arbitrary point (x,y).
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
derive the slope-intercept form of a linear equation from the slope formula using (o,b) as the coordinates of the point where the line crosses the y-axis and arbitrary point (x,y).
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You are given two points: (0,b) and (x,y)
slope = change in y / change in x = y-b/x-0 = (y-b)/x
So, m=(y-b)/x
Solve for y as follows:
mx = y-b
y = mx+b
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Cheers,
Stan H.
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