Algebra Examples

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Find the value of the slope.
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Slope is equal to the change in over the change in , or rise over run.
The change in is equal to the difference in x-coordinates (also called run), and the change in is equal to the difference in y-coordinates (also called rise).
Substitute in the values of and into the equation to find the slope.
Simplify.
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Simplify the numerator.
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Multiply by to get .
Subtract from to get .
Simplify the denominator.
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Remove parentheses.
Multiply by to get .
Add and to get .
Divide by to get .
Find the value of the y-intercept.
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Substitute the value of into the slope-intercept form of the equation, .
Substitute the value of into the slope-intercept form of the equation, .
Substitute the value of into the slope-intercept form of the equation, .
Rewrite the equation as .
Simplify the left side.
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Simplify each term.
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Multiply by to get .
Multiply by to get .
Add and to get .
The values of the slope and y-intercept are and
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