How do you find the slope of the line passing through points (2,1) and (-7,4)?

1 Answer
Jim G.
Nov 14, 2016

#"slope" =-1/3#

Explanation:

To calculate the slope use the #color(blue)"gradient formula"#

#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(m=(y_2-y_1)/(x_2-x_1))color(white)(2/2)|)))#
where m represents the slope and # (x_1,y_1),(x_2,y_2)" 2 points on the line"#

Here the 2 points are (2 ,1) and (-7 ,4)

let # (x_1,y_1)=(2,1)" and " (x_2,y_2)=(-7,4)#

#rArrm=(4-1)/(-7-2)=3/(-9)=-1/3#

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