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juin [17]
3 years ago
12

Write the equation of the line that passes through the points (7,9) and

Mathematics
1 answer:
nevsk [136]3 years ago
5 0

Step-by-step explanation:

9 = a7 + b

-2 = a9 + b

b = 9-7a and b = - 2-9a

9 - 7a = - 2-9a

2a = - 11

a = - 5.5

b = 9 - 5.5*7 = - 29.5

y = -5.5x - 29.5

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