How do you find the slope of (2,5); (9,1) without a graph?

1 Answer
Jim G.
Jun 28, 2016

slope#=-4/7#

Explanation:

To find the slope (m ) we can use the #color(blue)"gradient formula"#

#color(red)(|bar(ul(color(white)(a/a)color(black)(m=(y_2-y_1)/(x_2-x_1))color(white)(a/a)|)))#
where # (x_1,y_1)" and " (x_2,y_2)" are 2 points"#

Here the 2 points are (2 ,5) and (9 ,1)

let #(x_1,y_1)=(2,5)" and " (x_2,y_2)=(9,1)#

#rArrm=(1-5)/(9-2)=(-4)/7=-4/7#

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