Chapter 1: Q. 17 (page 40)
Plot each pair of points and determine the slope of the line containing them. Graph the line by hand.
Short Answer
The slope of the line is and the graph is
Chapter 1: Q. 17 (page 40)
Plot each pair of points and determine the slope of the line containing them. Graph the line by hand.
The slope of the line is and the graph is
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Get started for freeFor the line , the intercept is _____ and the intercept is _______.
Show that the line containing the points (a, b) and (b, a), a b, is perpendicular to the line y = x. Also show that the midpoint of (a, b) and (b, a) lies on the line y = x.
What can you say about two lines with the same -intercept and the same -intercept Assume that the -intercept is not 0.
Solve:
A cereal company finds that the number of people who will buy one of its products in the first month that it is introduced is linearly related to the amount of money it spends on advertising. If it spends \(40,000 on advertising, then 100,000 boxes of cereal will be sold, and if it spends \)60,000, then 200,000 boxes will be sold.
(a) Write a linear equation that relates the amount A spent on advertising to the number x of boxes the company aims to sell.
(b) How much advertising is needed to sell 300,000 boxes of cereal?
(c) Interpret the slope.
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