find the slope of the line joining each pair of points. (2.1, –3.2), (–1.5, 1.6)
Mathematics · Middle School · Mon Jan 18 2021
Answered on
Given:
(2.1, -3.2)
(-1.5, 1.6)
x1 = 2.1
x2 = -1.5
y1= 3.2
y2 = 1.6
Find the slope of the line.
Formula for the slope of the line:
m = change in y/ change in x
m = (y2 - y1)/(x2 - x1)
Solution:
Substitute the given values to the formula for the slope of the line.
m = (y2 - y1)/(x2 - x1)
m = (3.2 - 1.6)/(-1.5 - 2.1)
m = (1.6)/( -3.6)
m = -½
m = -½
Final answer:
The slope of the line = -½