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Between 2010 and 2015 the average price of tea in the UK increased from £7.20 per kilo to £8.48 per kilo. Over the same period the quantity of tea purchased fell from 97 million kilos to 76 million kilos. Find the price elasticity of demand

price elasiticy of demand is determined by the percentage change in quantity demanded divided by the percentage change in the price of a good. Therefore, to find the elasticity of demand, you must find the p...
Answered by • Economics tutor
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The equation of the regression line of y (retail price, £) on x (number of pages) for a set of books is y = 0.02x + 1.35. How can I use this equation?

A regression line comes from the line of best fit, y=mx+c. Given your data, you can find the line. C is the point where it crosses the y axis, and m is the slope. Here, we know that the price of a book is y,...
AB
Answered by Andrew B. • Maths tutor
2982 Views

What is the best way to structure an essay?

A short introduction, either situating an extract, summarising the effect of a certain theme or character, or the function of a source. It can be useful to close the introduction with a short sentence statin...
FA
Answered by Francesca A. • English tutor
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How can I understand enzyme-substrate function?

The best way to understand the enzyme-substrate mechanism is to imagine a baseball glove, and a baseball (photographed on the screen). The baseball glove is designed to fit the baseball. Therefore, the ball ...
Answered by • Biology tutor
3538 Views

Find the turning points of the equation y=4x^3-9x^2+6x?

To find the turning points, first find the first derivative of the equation by differentiating. Differentiating can be done in this equation by multiplying the number in front of the x by the power then lowe...
DR
Answered by Douglas R. • Maths tutor
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