i. Express 2x 2 4x + 1 in the form a(x + b) 2 + c
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i. Express 2x2 − 4x + 1 in the form a(x + b)2 + c and hence state the coordinates of the minimum point, A, on the curve y = 2x2 − 4x + 1. The line x − y + 4 = 0 intersects the curve y = 2x2 − 4x + 1 at the points P and Q. It is given that the coordinates of P are (3, 7).
ii. Find the coordinates of Q.
iii. Find the equation of the line joining Q to the mid-point of AP.
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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