a. Express 1 + 4x - x 2 in the form a - (x + b) 2
Question:
a. Express 1 + 4x - x2 in the form a - (x + b)2, where a and b are constants to be found.
f(x) = 1 + 4x - x2 for x ≥ 2
b. Find the coordinates of the turning point of the function f(x), stating whether it is a maximum or minimum point.
c. Explain why f(x) has an inverse and find an expression for f-1(x) in terms of x.
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a 1 4x x 1 x 4x 1 x2x2 22 dx 1 x 2 4 1 x 2 4 5 x 2 There...View the full answer
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Related Book For 
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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