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Question 632695: How do I find the equation (in slope intercept form )of the line if given the solution and the ordered pair it passes through?
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! How do I find the equation (in slope intercept form )of the line if given the solution and the ordered pair it passes through?
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You can always find the equation of a straight line if you have:
Its slope and a point on the line, or 2 points on the line.
Standard form of equation for a straight line: y=mx+b, m=slope, b=y-intercept.
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With given slope and a point (ordered pair):
With slope in the equation,
Plug in x and y coordinates of given point in to basic equation to find b, the y-intercept.
You now have the slope,m and y-intercept, b to complete the equation of the line, y=mx+b
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With 2 given points.
Find the slope,m=∆y/∆x=change in y/change in x=rise,run
With slope in the equation,
Plug in x and y coordinates of any one given point in to basic equation to find b, the y-intercept.
You now have the slope,m and y-intercept, b to complete the equation of the line, y=mx+b
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