Chapter 3: Q. No. 2 (page 164)
Use a graphing utility to find the line of best fit for the following data:
Short Answer
The line of best for given data is.
Chapter 3: Q. No. 2 (page 164)
Use a graphing utility to find the line of best fit for the following data:
The line of best for given data is.
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Get started for freeIn Problems 7–22, solve each inequality.
An accepted relationship between
stopping distance, d (in feet), and the speed of a car, v (in mph), is on dry, level concrete.
(a) How many feet will it take a car traveling 45 mph to stop on dry, level concrete?
(b) If an accident occurs 200 feet ahead of you, what is the maximum speed you can be traveling to avoid being involved?
(c) What might the term represent?
Why does the graph of a quadratic function open up if and down if ?
The daily revenue R achieved by selling x boxes of candy is figured to be The daily cost C of selling x boxes of candy is .
(a) How many boxes of candy 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 boxes of candy 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.
In problems 3-6, use the figure to solve each inequality.
a)
b)
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