Question

What is the slope of the line that passes through the points (−9,8) (-9, 8) (−9,8) and (−21,10)? (-21, 10) ?(−21,10)? Write your answer in simplest form.

Answer 1

Answer:

-1/6

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Step-by-step explanation:

(−9,8) and (−21,10)

−21−(−9)

10−8  

Plug in.  

−21+9

10−8

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The negative of a negative is a positive.  

−12

2

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Add/Subtract.  

−  

6

1

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A positive divided by a negative is a negative.Cancel the common factor of 2.