1. The slope of the total product curve is:

a) fixed product
b) average product
c) marginal product
d) implicit product

2. Marginal product, mathematically, is the slope of the:

a) total product curve
b) average product curve
c) marginal product curve
d) opportunity product curve

3. Variable costs include:

a) the cost of raw materials
b the salaries of top management
c) rent on leased buildings
d) all of the above

4. When a total product curve is increasing at a decreasing rate, its corresponding marginal product curve is:

a) rising
b) falling
c) vertical
d) negative

5. When a total product curve is increasing at an increasing rate, its corresponding marginal product curve is:

a) vertical
b) horizontal
c) rising
d) falling