Question

The total cost in dollars to buy

uniforms for the soccer team players
can be found using the function
y = 28.95x + 4.25, where x is the number
of uniforms purchased. If there are a
minimum of 16 players and at most 20
players on the team, what is the domain
of the function for this situation?
A 0 B 0 C {16, 17, 18, 19, 20}
D {467.45, 496.40, 525.35, 554.30,
583.25}

Answer 1

Answer: C {16, 17, 18, 19, 20}

The instructions state "there are a minimum of 16 players and at most 20 players on the team". This means that we have between 16 and 20 players, inclusive of both endpoints. Therefore, x can take on any whole number between 16 and 20. The domain is the set of allowed x inputs of a function.