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

asked Aug 11, 2023 20.0k views

22 votes

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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12 votes

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

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

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

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

Willium answered Aug 17, 2023

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