Question

Find the slope of the line through each pair of points. 9) (17, -6), (-11,7)

(i need explanation)



I would appreciate any help.
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Answer 1

slope = -
`(13)/(28)`

Explanation:

calculate the slope m using the slope formula

m =
`(y_(2)-y_(1) )/(x_(2)-x_(1) )`

with (x₁, y₁ ) = (17, - 6 ) and (x₂, y₂ ) = (- 11, 7 )

m =
`(7-(-6))/(-11-17)` =
`(7+6)/(-28)` = -
`(13)/(28)`