Comments about #13004

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Jeff.: I got graphs.
The 4 names were OK>>> I didn't know who they were tho ! (3 months ago)

YourFriend: A pleasant grid, and not too hard. One thing: try to be more lenient with the free answers. The quadratic/scatter/bar/line should accept answers like 'plot' and 'chart'. (3 months ago)

Anton Deck: Interesting and fun. (3 months ago)

john: Great (3 months ago)

john: Great! (3 months ago)