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## Answers

the distance between (x2,y2) and (x2,y1) Using the distance formula, which is:

D={(x2−x1)2+(y2−y1)2}^1/2

Substituting our coordinates into the formula:

D={(x2−x2)2+(y2−y1)2}^1/2

D={(y2−y1)2}^1/2

D=y2−y1

Therefore, y2−y1 is our rise. Now for our run. the distance between (x1,y1) and (x2,y1)

.D={(x2−x1)2+(y1−y1)2}^1/2

D={(x2−x1)2}^1/2

D=x2−x1 Our run is x2−x1

Therefore, rise/run=(y2−y1)/(x2−x1).

Remember that m=rise/run.

m = (y2-y1)/(x2-x1)