Math 121

Section 2.3

Business Functions

Cost Function - C(x)

Revenue Function – R(x)

Profit Function – P(x)

Marginal Measures

Marginal Cost -

Marginal Revenue -

Marginal Profit -

Examples pages 117-118

Find the marginal cost function

18)

20)

Find the marginal revenue function

22)

24)

Find the marginal profit

26)

28)

32)

Marginal Profit

a)

b)

c) The values are about the same

Break Even Point

The value of x (number of units sold) where Cost equals Revenue

Examples

1)

2)