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Leya [2.2K]
3 years ago
13

The points (10, 6) and (7, u) fall on a line with a slope of -4/3. what is the value of u?

Mathematics
1 answer:
Aleks [24]3 years ago
3 0
Answer:
u = 10

Explanation:
The slope of the lone can be calculated as follows:
slope = (y2-y1) / (x2-x1)

We are given:
slope = -4/3
point (10,6) representing (x1,y1)
point (7,u) representing (x2,y2)

Substitute with the givens in the above equation and solve for u as follows:
slope = (y2-y1) / (x2-x1)
-4/3 = (u-6) / (7-10)
-4/3 = (u-6) / -3
4/3 = (u-6) / 3
3*4 = 3*(u-6)
4 = u-6
u = 4+6
u = 10

Hope this helps :)
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3 years ago
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9514 1404 393

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_____

It can be less tedious to let a spreadsheet do the calculations.

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