Question

Create a function for the following word problem.

Juan purchases school lunch for $3.15. Express his monthly cost

Answer 1

A function can be used to model real world situations.

The function for monthly cost is $f(n) = 3.15n$

From the question, we have:

$Lunch = \ 3.15$

Assume the number of days in a month is n.

The monthly cost will be calculated using:

$f(n) = Lunch \times n$

Substitute 3.15 for Lunch

$f(n) = 3.15 \times n$

$f(n) = 3.15n$

Hence, the function for monthly cost is: $f(n) = 3.15n$

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