The above figure shows the market for steel ingots. If the market is competitive, then the competitive market level of output is

Which of the following would be the best example of a final good or service?

A. a machine that GM purchased to build cars B. flour used to make pizza C. jet fuel used by United Airlines in one of its airliners D. a meal that a family makes for itself

If a straight line passes through the point x = 8 and y = 4 and also through the point x = 12 and y = 6, the slope of this line is

A) negative one half. B) one half. C) negative 4 divided by 2. D) two.