# Precalculus Examples

,

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

Multiply by .

Simplify .

Multiply by .

Apply the distributive property.

Simplify .

Write as a fraction with denominator .

Multiply and .

Simplify .

Write as a fraction with denominator .

Multiply and .

Move the negative in front of the fraction.

Move all terms not containing to the right side of the equation.

Add to both sides of the equation.

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 .

Combine the numerators over the common denominator.

Simplify the numerator.

Multiply by .

Subtract from .

Reorder and .

Reorder terms.