# Finite Math Examples

,

Using the point-slope form , plug in , , and .

Simplify the right side.

Multiply by to get .

Apply the distributive property.

Simplify .

Write as a fraction with denominator .

Multiply and to get .

Simplify .

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.

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.

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 .

Combine.

Multiply by to get .

Combine the numerators over the common denominator.

Simplify the numerator.

Multiply by to get .

Multiply by to get .

Add and .

Reorder and .

Reorder terms.