Question: What happens in the graph in Problem 21 if the rainfall increases from 200 mm to 400 mm? Data from in Problem 21 The table
What happens in the graph in Problem 21 if the rainfall increases from 200 mm to 400 mm?
Data from in Problem 21
The table gives data about umbrellas: price, the number purchased, and rainfall in millimetres (mm).

Price (dollars per umbrella) 20 30 40 Umbrellas (number purchased per day) 0 mm 200 mm 421 7 4 2 400 mm 8 AVO 7 4
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