How do you find the slope of the line that goes through the given points. (4, 9) and (2 5)?
1 Answer
Apr 25, 2018
Explanation:
#"to calculate the slope m use the "color(blue)"gradient formula"#
#•color(white)(x)m=(y_2-y_1)/(x_2-x_1)#
#"let "(x_1,y_1)=(4,9)" and "(x_2,y_2)=(2,5)#
#rArrm=(5-9)/(2-4)=(-4)/(-2)=2#
#"note if the coordinates are reversed the result is the same"#
#"let "(x_1,y_1)=(2,5)" and "(x_2,y_2)=(4,9)#
#rArrm=(9-5)/(4-2)=4/2=2#
