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Finite Math Examples
,
Step 1
Step 1.1
Use the formula for the equation of a line to find .
Step 1.2
Substitute the value of into the equation.
Step 1.3
Substitute the value of into the equation.
Step 1.4
Substitute the value of into the equation.
Step 1.5
Find the value of .
Step 1.5.1
Rewrite the equation as .
Step 1.5.2
Simplify each term.
Step 1.5.2.1
Cancel the common factor of .
Step 1.5.2.1.1
Factor out of .
Step 1.5.2.1.2
Factor out of .
Step 1.5.2.1.3
Cancel the common factor.
Step 1.5.2.1.4
Rewrite the expression.
Step 1.5.2.2
Combine and .
Step 1.5.2.3
Multiply by .
Step 1.5.3
Move all terms not containing to the right side of the equation.
Step 1.5.3.1
Subtract from both sides of the equation.
Step 1.5.3.2
To write as a fraction with a common denominator, multiply by .
Step 1.5.3.3
Combine and .
Step 1.5.3.4
Combine the numerators over the common denominator.
Step 1.5.3.5
Simplify the numerator.
Step 1.5.3.5.1
Multiply by .
Step 1.5.3.5.2
Subtract from .
Step 2
Now that the values of (slope) and (y-intercept) are known, substitute them into to find the equation of the line.
Step 3