A large pizza at Palanzio’s Pizzeria costs $6.80 plus $0.90 for each topping. The cost of a large cheese pizza at Guido’s Pizza
is $7.30 plus $0.65 for each topping. How many toppings need to be added to a large cheese pizza from Palanzio’s Pizzeria and Guido’s Pizza in order for the pizzas to cost the same, not including tax?
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Find the equation of the inverse.
we have
step 1
Exchange the variables
x for y and y for x
step 2
Isolate the variable y
apply log both sides
step 3
Let
therefore
the inverse function is