Sossyjones Sossyjones

02-03-2016
Mathematics

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A line of slope -3 contains the points A= (2,5) B= (4, k) What is the value of k?

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Аноним Аноним

02-03-2016

Slope = -3

y2 = k
y1 = 5
x2 = 4
x1 = 2

Slope = y2- y1 / x2- x1
-3 = k-5 / 4-2
-3 = k-5 / 2
k-5 = -3 * 2 = -6
k = -6+ 5
k = -1

Therefore, the value of k is -1 .

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