Finite Math Examples

Find the Equation Using Point-Slope Formula
,
Using the point-slope form , plug in , , and .
Solve for .
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Simplify the right side.
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Multiply by to get .
Apply the distributive property.
Simplify .
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Write as a fraction with denominator .
Multiply and to get .
Simplify .
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Write as a fraction with denominator .
Multiply and to get .
Move the negative in front of the fraction.
Move all terms not containing to the right side of the equation.
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Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.
Simplify the right side of the equation.
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To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
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Combine.
Multiply by to get .
Combine the numerators over the common denominator.
Simplify the numerator.
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Multiply by to get .
Multiply by to get .
Add and .
Reorder and .
Reorder terms.
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