Chapter 3: Q. 10 (page 136)
True or False The slope of a nonvertical line is the average rate of change of the linear function.
Given Statement is true.
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Match each graph to one the following functions.
The graph of a quadratic function is called a _________.
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 | -26 |
| -1 | -4 |
| 0 | 2 |
| 1 | -2 |
| 2 | -10 |
Match each graph to one the following functions.
The monthly revenue R achieved by selling
x wristwatches is figured to be The monthly cost C of selling x wristwatches is
(a) How many wristwatches must the firm sell to maximize revenue? What is the maximum revenue?
(b) Profit is given as P(x) = R(x) - C(x). What is the profit function?
(c) How many wristwatches must the firm sell to maximize
profit? What is the maximum profit?
(d) Provide a reasonable explanation as to why the answers found in parts (a) and (c) differ. Explain why a quadratic function is a reasonable model for revenue.
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