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The Virtual Textbook
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Integration
This series of excel sheets look at the area of regions bounded by linear and quadratic graphs.
The first interactive sheet calculates the area under the line y = mx + c between limits A and B. The effect on the area of adjusting the value of the gradient, y-intercept and upper and lower limits can then be seen.
The next interactive sheet is similar to the first, this time calculating the area of the region bounded the line y = mx + c and the y-axis between limits P and Q.
The next two interactive sheets repeat the processes of calculating area, this time for quadratic functions. Again the variables used, including the coefficients of the equation, can be adjusted.
The final two interactive sheets calculate the area of a region bounded by two functions. The first finds the shaded area between two quadratic functions and the second finds the area of the region bounded by a parabola and a straight line.
Note
This program was designed by be viewed on a screen with a resolution of 1024 x 768. Users may have to adjust the resolution of their screen for the pages to display as was originally intended. The program uses macros which need to be enabled on users’ machine.
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