SOLUTION: A line that includes the points (9, -7) and (8, j ) has a slope of 2. What is the value of j ? j=

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Question 1087877: A line that includes the points (9, -7) and (8, j ) has a slope of 2. What is the value of j ?
j=
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
The expression for the slope gives this equation

m = ,   or  2 = ,


which is the same as 


 = 2,


which is equivalent to

j + 7 = -2. 


Hence, j = -2 - 7 = -9.


Answer.  j = -9.

Solved.


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