The table shows experimental values of the variables x and y. The variables are known to be

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The table shows experimental values of the variables x and y.

The variables are known to be related by the equation y = a/x+b, where a and b are constants.

a. Draw the graph of lg y against xy.

b. Use your graph to estimate the value of a and the value of b.

An alternate method for obtaining a straight-line graph for the equation y = a/x+b is to plot x on the vertical axis and 1/y on the horizontal axis.

c. Without drawing a second graph, estimate the gradient and the intercept on the vertical axis of this graph.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 26, 2021 05:07 AM

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The table shows experimental values of the variables x and y. The variables are known to be

Question:

0.2 0.4 0.5 0.7 0.9 36 12 9 6 4.5

Step by Step Answer:

a Draw the graph of lg y against xy To draw the graph of lg y against xywe can first calculate the values of lg y and xy for each data point in the ta...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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