Variables x and y are related so that, when y 2 is plotted on the vertical axis
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Variables x and y are related so that, when y2 is plotted on the vertical axis and 2x is plotted on the horizontal axis, a straight-line graph which passes through the point (8, 49) with gradient 3 is obtained.
a. Express y2 in terms of 2x.
b. Find the value of x when y = 11.
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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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