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lisabon 2012 [21]
3 years ago
15

A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or par

allel lines. The
equation of the lane passing through A and B is -7x + 3y = -21.5. What is the equation of the central street PQ?
Geography
1 answer:
AfilCa [17]3 years ago
5 0

Answer:3x + 7y = 63

Explanation:The equation of PQ is  

y = -(3/7)x + b

To find b, note that the line passes through the point (7,6). Therefore

6 = -(3/7)*7 + b

6 = -3 + b

b = 9

The equation of PQ is

y = - (3/7)x + 9

or

7y = -3x + 63

3x + 7y = 63

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