SOLUTION: What is the slope of the line that passes through the points (-5,4) and (15,-4)?

Question 620565: What is the slope of the line that passes through the points (-5,4) and (15,-4)?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Note:

is the first point

. So this means that and .
Also,

is the second point

. So this means that and .

Start with the slope formula.

Plug in , , , and

Subtract from to get

Subtract from to get

Reduce

So the slope of the line that goes through the points

and

is

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