Which value of r gives the line passing through (3,2) and (r, -4) a slope of 3/2
Mathematics · Middle School · Thu Feb 04 2021
llm
Answered on
We have,
x1 = 3
y1 = 2
x2 = r
y2 = -4
Slope, m = 3/2
Slope, m = (y2-y1)/(x2-x1)
3/2 = (-4-2)/(r-3)
3/2 = -6/r-3
3r - 9 = -12
3r = -12 + 9
3r = -3
r = -3/3
r = -1
So, value of r is -1