Question

Nico ordered a side of rice and beans for $2.50 and x tacos, each priced at $3.50, including tax. To determine the total cost of his order, y, Nico set up the equation y = 2.5 + 3.5x. What is the domain of this function

Answer 1

a on ed

Explanation:

Answer 2

The domain of a function is the set of values that can be used for x.
Here, x represents the number of tacos.
He can order no taco, so x = 0.
He can order 1 taco, where x = 1.
He can order 2 tacos, so x = 2.
He cannot order a fraction of a taco, so x cannot be a mixed numeral.
He can order as many tacos as he wants, so x can be any whole number, 0 to infinity.
The domain is all whole numbers.