Question

Natalie has 500 candy bars to sell for a fundraiser. Let C be the number of candy bars. Let P be the amount made from selling the candy bars. Suppose that P equals 2 C minus 250 gives P as a function of C.
Identify the correct description and appropriate set of values for the domain of the function.



the number of candy bars; the set of all real numbers from 0 to 250


the number of candy bars; {0, 1, 2, 3, …, 500}


the amount made from selling the candy bars; {0, 1, 2, 3, …, 500}


the amount made from selling the candy bars; the set of all real numbers from 0 to 250

Answer 1

1. Writing p as a function of c gives

P =2c-250

Where C is the number of candy bar

P is the number of candy bar sold.

2. This is expressed as

0 =< C <= 250

3. This is expressed as

0 =< C =< 250

4. Amount made from selling candy bar in the set of interger between 0 to 500

C is given as 500

From the equation P=2C-250

P=2×500-250

P=1000-250 =750.

P=750

5. Amount made selling candy bar for the set of real numbers between 0 and 250

C is equal to 250

From the equation, we have

P=2×250-250

P=500-250 =250.