Problem 5 of 35alg-005
In the standard coordinate plane, what is the slope of the line through the points and ?
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Solution walkthrough1:32
- Slope measures steepness: the change in (the rise) divided by the change in (the run).
- Rise: second minus first . . The line drops units.
- Run: second minus first , in the same order. .
- Slope . It is negative because the line falls from left to right.
- Traps: is run over rise, mixes the order, uses .