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.
Electricity row game
4 years ago
2 comments:
Steve, this is a really good site!
do you think you could write something about finding the gradient of a non linear graphs??
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