Question

Choose the situations that state an appropriate domain for the function. Mark ALL that apply.

Answer 1

Answer:

B) A grocery store sells salmon by the pound. The function C(x) represents the cost, in dollars, of x pounds of salmon. An appropriate domain for the function is positive rational numbers.

C) A ball was thrown into the air with an initial velocity of 65 feet per second. The height of the ball after t seconds is represented by the equation h = 65t − 16t2. An appropriate domain for the function is positive rational numbers.

D) A taxi company charges $2.50 plus $1.75 for each mile driven. A function C(x) shows how much a taxi fare cost. An appropriate domain of C(x) is all whole numbers.