Verified Answer :

demonwolf

if im not mistaken it is 22

JeanaShupp

Answer: b. 22

Step-by-step explanation:

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

\(m=\dfrac{d-b}{c-a}\)

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 :_

\(5=\dfrac{2-y}{-4-0}\\\\\Rightarrow\ 5=\dfrac{2-y}{-4}\\\\\Rightarrow\ -4\times5=2-y\\\\\Rightarrow\ y=2+20=22\)

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

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