Marcello\'s Pizza charges a base price of $11 for a large pizza plus $2.50 for e

Question

Marcello's Pizza charges a base price of $11 for a large pizza plus $2.50 for each additional topping. (a) Find a function fthat models the price of a pizza with n toppings. rn) = (b) Find the inverse of the function f What does f represent? f-1 represents the number of pizzas with toppings that cost n dollars. O r-1 represents the number of toppings on a pizza that costs 2/S(n) dollars. O f1 represents the cost of a pizza with n toppings. represents the number of toppings on a pizza that costs n dollars. (c) If a pizza costs $21, how many toppings does it have? toppings Need Help? ReadIt Watch It

Explanation / Answer

a. f(n)=11+2.50n

b. f(n) =y= 11+2.50n

switching n and y

n= 11+2.50y

n-11=2.50y

y=(n-11)/2.50

f-1(n) =(n-11)/2.50

And the correct option is the last option

c. 21=11+2.50n

10=2.50n

n=4

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