Marcello's Pizza charges a base price of $12 for a large pizza plus $4 for each

label Algebra
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Marcello's Pizza charges a base price of $12 for a large pizza plus $4 for each topping. Thus, if you order a large pizza with x toppings, the price of your pizza is given by the function 
f(x) = 12 + 4x.
Jul 2nd, 2015

Thank you for the opportunity to help you with your question!

Your equation is: 

f(x) = 12 + 4x

Solve for x. 

Subtract 12 to both sides of this equation to get: 

f(x) -12 = 4x 

Divide both sides of this equation by 4 to get: 

(f(x) -12)/4 = x 

Since, in general, a = b implies that b = a, this equation becomes: 

x = (f(x) - 12)/4

Replace x with f(x) and replace f(x) with x to get: 

f(x) = (x-12)/4

That's your inverse function. 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 2nd, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
Jul 2nd, 2015
Jul 2nd, 2015
Oct 23rd, 2017
Mark as Final Answer
Unmark as Final Answer
Final Answer

Secure Information

Content will be erased after question is completed.

Final Answer