Friday, 20 April 2012

Graph plotting

This YouTube shows how to plot the graph of a linear equation (= straight line).

Have a go at plotting the line before watching the video
1. (a) Plot the graph y = 2x + 1
(b) Use your graph to find y when x = 2.5
(c) From the graph find the value of x when y = 4.


Ria said...

Steve, this is a really good site!
do you think you could write something about finding the gradient of a non linear graphs??

Steve Bishop said...
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