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Chapter 3: Q. 17 (page 174)
In Problems 15–17, determine whether the given quadratic function has a maximum value or a minimum value, and then find the value.
The quadratic function has a maximum value. The maximum value is 4.
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If then
a) Determine the slope and y-intercept of each function.
(b) Use the slope and y-intercept to graph the linear function.
(c) Determine the average rate of change of each function.
(d) Determine whether the linear function is increasing, decreasing, or constant.
In Problems 7–22, solve each inequality.
The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example, if the marginal cost of producing the 50th product is \(6.20, it cost \)6.20 to increase production from 49 to 50 units of output. Suppose the marginal cost C
(in dollars) to produce x thousand mp3 players is given by the function
(a) How many players should be produced to minimize the marginal cost?
(b) What is the minimum marginal cost?
In Problems 4 and 5, determine whether the function is linear or nonlinear. If the function is linear, find the equation of the line.
In Problems 21–28, determine whether the given function is linear or nonlinear. If it is linear, determine the equation of the line .
| x | |
| -2 | 0 |
| -1 | 1 |
| 0 | 4 |
| 1 | 9 |
| 2 | 16 |
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