A straight line passes through the point P(1,2) and Q (5,8). Calculate the length PQ

Assessment: WAEC SSCE - General Mathematics - 2016 (Objective) Subject: General Mathematics

Question 1 Report

A straight line passes through the point P(1,2) and Q
(5,8). Calculate the length PQ
Answer Details
We can use the distance formula to find the length PQ, which is the distance between points P and Q on the line. The distance formula is: distance = \(\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\) where (x1, y1) = P and (x2, y2) = Q. Plugging in the values: distance = \(\sqrt{(5-1)^2 + (8-2)^2}\) = \(\sqrt{16 + 36}\) = \(\sqrt{52}\) = \(2\sqrt{13}\) Therefore, the length PQ is \(2\sqrt{13}\). Answer: \(2\sqrt{13}\).

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