Apples at the local farmer's market cost $1.25 per pound. Write a function rule​f that gives the total cost of apples in terms of the number of pounds, x.

Answer 1

The function rule f that gives the total cost of apples in terms of the number of pounds, x, can be expressed as:

f(x) = 1.25x

Answer 2

The price of a pizza is $7.99 plus an additional $1.35 for each topping. Write a function rule f that gives the total price as a function of the number of toppings, x.

Answer 3

The function rule f that gives the total price as a function of the number of toppings, x, can be expressed as:

f(x) = 7.99 + 1.35x