What is the slope of the line passing through (7,9) ; (3,7) (7,9);(3,7)?
1 Answer
Jan 15, 2016
slope = 1/2 slope=12
Explanation:
To find the gradient (slope ) of a line joining 2 points use the 'gradient formula' :
m = (y_2 - y_1 )/(x_2 - x_1) m=y2−y1x2−x1 where m represents the slope and
(x_1 , y_1 ) , (x_2 , y_2 )(x1,y1),(x2,y2) are the coordinates of the 2 points.
let
(x_1 , y_1 ) = ( 3 , 7 ) and (x_2 , y_2 ) = (7 , 9 )(x1,y1)=(3,7)and(x2,y2)=(7,9) for this question.Evaluating: m =
(9 - 7 )/(7 - 3 ) = 2/4 = 1/2 9−77−3=24=12
