If the point (p, q) lies on the line joining (1, 5) and (2, 7), then find the value of 2q−4p.
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Answer:
y-2x
Step-by-step explanation:
(x1 -x2)2- (y1-y2)2
= (1-2)2-(5-7)2
=1 - 4= -3
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