Question

Use the slope formula to find the missing coordinate.

R(0, _), S(-4, 2) m = 5
a. 18
b. 22
c. -22

Answer 1

if im not mistaken it is 22

Answer 2

Answer: b. 22

Explanation:

The slope of a line passing through two points A(a,b) and B(c,d) is given by:_

`m=(d-b)/(c-a)`

Let the missing coordinate of point R be y.

Then , the slope of the line passing through the points R(0,y) and (-4,2) will be :_

`5=(2-y)/(-4-0)\\\\\Rightarrow\ 5=(2-y)/(-4)\\\\\Rightarrow\ -4*5=2-y\\\\\Rightarrow\ y=2+20=22`

Hence, the missing coordinate of point R is y= 22