Now, cover the above graph, and after 10+ minutes, try to make it on the following grid:
This grid consists of 7*12=84 small rectangles. Compare what you drew with the original one above; for how many of the rectangles did you draw the right borders (note that this graph passes only over the rectangles' borders)? For each correct one give yourself +1 point and for any incorrect -1; so the maximum score can be +84. What is your total mark?
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