
Concept explainers
a.
Describe the
a.

Answer to Problem 5PPS
Explanation of Solution
Given information:
The table shows the amount of ice cream Sunee’s Homemade Ice Creams
Make a
Calculation:
The slope of the line is positive and the points are close to the line.
The slope of the line is negative and the points are not close to the line.
No correlation:
There is no obvious pattern of increase or decrease for the given data.
Consider the table provided into textbook.
Graph the data as ordered pairs with the month on the horizontal axis and Gallons sold on the vertical axis. Let
Use maple to graph a scatter plot and a line of fit.
Suppose
The data show a strong positive correlation.
b.
Use two ordered pairs to write a prediction equation.
b.

Answer to Problem 5PPS
Explanation of Solution
Given information:
The table shows the amount of ice cream Sunee’s Homemade Ice Creams
Use two ordered pairs to write a prediction equation.
Calculation:
Find an equation of the line through
Suppose
First find the slope of the line;
Simplify the above equation.
Now, find an equation.
Substitute
Apply the distributive property and simplify the above equation;
Hence, the prediction equation is
c.
Use your prediction equation to predict the missing value.
c.

Answer to Problem 5PPS
Explanation of Solution
Given information:
The table shows the amount of ice cream Sunee’s Homemade Ice Creams
Use your prediction equation to predict the missing value.
Calculation:
Find
Substitute
Hence, about
Chapter 2 Solutions
Algebra 2
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