Hi

We are tryng to create a simple chart for my daughters homework. It is to
show the resistance in relation to the length of a piece of wire, a line
graph is needed showing the plotted (slightly curved) line and a line of
best fit.

The data is:

resistance length of wire
0 0
0.10 10
0.23 20
0.35 30
0.50 40
0.60 50
0.70 60
0.80 70
1.00 80


When plotted it shows 2 lines (although they dont look identical to the
school example), but stranger still it has changed the values.

Can anyone advise me how to do this, i am sure its simple stuff.

cheers

Gary