Gradient of a line Physics in exam (1 Viewer)

[v.tex]

So basically I had a test and a graph came up for Malus's Law where we had to use the gradient to get the answer.

I used the point gradient formula with points from the graph and somehow got a value of 3500.. something but all my friends did not use the point gradient formula and just did the total rise over the total run and got an exact value of 4000.

Do you guys reckon I still will get the question right.

Im really annoyed because it was an easy test and I should of done alot better

 

[NoobTransforming]

If you didn't make mistakes then imo you should be fine. You do 4u math so have some confidence in your mathematical ability (regardless of what your friends did).