What is the slope of a line that with the points (1,2) and (2,0)?

1 Answer
Jim G.
Mar 27, 2016

slope = -2

Explanation:

To find the gradient (slope) of a line passing through 2 points , use the color(blue)" gradient formula " gradient formula

m = (y_2 - y_1)/(x_2 - x_1) m=y2−y1x2−x1

where (x_1,y_1)" and " (x_2,y_2)" are the coords of 2 points "(x1,y1) and (x2,y2) are the coords of 2 points

let (x_1,y_1)=(1,2)" and " (x_2,y_2)=(2,0) (x1,y1)=(1,2) and (x2,y2)=(2,0)

now substitute these values into the formula

rArr m = (0 - 2 )/(2 - 1 ) = (-2)/1 = -2 ⇒m=0−22−1=−21=−2

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