Question 219411
How do you find the rate of change?
The cost of group musuem tickets is $48 for four people and $78 for ten people.
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You have two points: (4,48) and (10,78).
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rate of change = slope = (78-48)/(10-4) = 30/6 = $5 for each additional person.
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Cheers,
Stan H.