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A line through the points $(2, -9)$ and $(j, 17)$ is parallel to the line $2x + 3y = 21$. What is the value of $j$?

 Apr 16, 2021
 #1
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2 x + 3y = 21      slope  = - 2/3    parallel slope is the same = - 2/3

 

slope calculation (y1-y2) / (x1-x2)                ( it does not matter which point you assign 1 or point 2)

                           (17- -9)/ (j-2) = - 2/3

                                j = -37

 Apr 16, 2021
 #2
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thank you

Guest Apr 16, 2021

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