Precalculus Examples

Find the Constant Using Slope
,
Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.
Divide each term by and simplify.
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Divide each term in by .
Reduce the expression by cancelling the common factors.
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Cancel the common factor.
Divide by to get .
Divide by to get .
Find slope of the equation in terms of using the slope intercept form.
Set the known value of equal to the slope of the equation in terms of .
Rewrite the equation as .
Solve for .
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Multiply both sides of the equation by .
Simplify the right side.
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Multiply by to get .
Multiply by to get .
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