The following expression models the total money earned by setting up a food stall at a funfair, where x represents the number of cheeseburgers sold. what does the constant term in the above expression represent?

The problem is as shown in the attached figure.
The given function is
Which represents the total money earned by selling x number of
cheeseburgers.

If the x = 0 which mean there is no cheeseburgers were sold

∴ f(x) = 10  ⇒⇒ ( the constant term )


So, the correct answer is option 3

The constant 10 refers to the cost of setting up the food stall even if no cheeseburger was sold.

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Option (1) is wrong because The cost of each cheeseburgers is obtained by substitute in the given function with x =1 without the constant term.

option (2) is wrong because the constant term is a cost and not the number of cheeseburgers 
option (3) is wrong because the total money earned is the entire f(x) not the constant term only

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