The sum of two real numbers, x and y, is 9. a. Express y in terms of

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The sum of two real numbers, x and y, is 9.
a. Express y in terms of x.
b.

i Given that P = x²y, write down an expression for P, in terms of x.
ii. Find the maximum value of P.
c.

i Given that Q = 3x² + 2y², write down an expression for Q, in terms of x.
ii. Find the minimum value of Q.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 11:25 PM

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The sum of two real numbers, x and y, is 9. a. Express y in terms of

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a Since the sum of two real numbers x and y is 9 we have y 9 x b i Given that P x2y we can substitut...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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