Question

What slope of a line that passes through (4, -1) and (2,9)

Answer 1

Answer:

$-5$

Step-by-step explanation:

$(4 \: \: ,\: \: \: - 1) = > (x1 \:, \: \: y1) \\ (2 \: \: \: \: \: \: , \: \: \: \: \: 9) = > (x2 \: \: , \: \: y2)$

$slope \\ = \frac{y1 - y2}{x1 - x2} \\ = \frac{( - 1 - 9)}{(4 - 2)} \\ = \frac{ - 10}{2} \\ = -5$

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Answer 2

Answer:

-5

Step-by-step explanation:

The slope is given by

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

   = (9 - -1)/ ((2 - 4)

   = (9+1)/(2-4)

   = 10/-2

   = -5