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MAVERICK [17]
3 years ago
11

Find the value of r (5,9) (r,7) m=-4

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0

Answer:

r = 11/2

Step-by-step explanation:

m = slope

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

-4 = (7 - 9)/(r - 5)

cross multiply

-4(r - 5) = 7 - 9

clearing brackets

-4r + 20 = -2

-4r = -22

r = 22/4 = 11/2

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