Question

Last month, the yearbook committee sold candy bars to raise money for the senior class. The function P(c) = 1.50c − 25 represented the profit, P(c), the yearbook committee earned selling the candy bars. Sales were strong, so the committee increased the price of each candy bar by 25 cents this month. Which function represents the yearbook committee’s profits this month?

1) p(c) = 0.25c-25
2) p(c)= 1.50c
3) p(c) = 1.50c- 55
4) p(c) = 1.75c -25

Answer 1

#4

Explanation:

The function
`P(c)=1.50c-25` represents the profit.

The 1.50 part is the price of each candy bar

The 25 part is the fixed cost incurred

This month, the price of candy bars increased by 0.25, so the "1.50" portion would be increased, NOT "25" portion [fixed cost remained same].

Thus, 1.50 would be increased by 0.25, that is:

1.50 + 0.25 = 1.75

Thus, the new profit function would be:

`P(c)=1.75c-25`

Answer choice #4 is right.