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Chapter 4: Q. 3 (page 191)
Theintercept of a line has no effect on the steepness of the line.
The intercept of a line has no effect on the steepness of the line". The given statement is true.
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A value ofcloses to -----indicates that the regression equation is is extremely useful for making predictions.
In Exercise 4.5, we give linear equations. For each equation,
a. find the -intercept and slope.
b. determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation.
c. use two points to graph the equation.
Given equation is,
If there is no linear relationship between and , the variables are linear -------
For which of the following sets of data points can you reasonably determine a regression line? Explain your answer.
In Exercise 4.12, we give linear equations. For each equation,
a. find the -intercept and slope.
b. determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation.
c. use two points to graph the equation.
Given equation is,
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