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.

## Friday, 20 April 2012

Subscribe to:
Post Comments (Atom)

## 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??

Post a Comment