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The points (n, -1) and (10, -3) fall on a line with a slope of - What is the value of n?
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22 votes
The points (n, -1) and (10, -3) fall on a line with a slope of -
What is the value of n?

User John Camerin
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1 Answer

12 votes
12 votes

slope = (y2-y1)/(x2-x1)


( - 1)/(7) = (n - 10)/( - 1 - - 3) = (n - 10)/(2)


( - 2)/(7) = n - 10


- 2 = 7n - 70 \\ 7n = 68 \\ n = 9.7

User Willium
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