
a
Draw a
a

Answer to Problem 18AYU
Explanation of Solution
Given information:
The following data represents the weight (in grams) of a box of raisins and the number of raisins in the box.
Draw a scatter diagram of the data treating weight as the independent variable.
Calculation:
Draw a scatter diagram of the data treating weight as the independent variable.
Hence, the result shown in scatter plot.
b.
What type of relation appears to exist between the weight of a candy bar and the number of calories?
b.

Answer to Problem 18AYU
The reletion defind by the set of order pairs
Explanation of Solution
Given information:
The following data represents the weight (in grams) of a box of raisins and the number of raisins in the box.
What type of relation appears to exist between the weight of box of raisins and the number of raisins in the box.
Calculation:
t
A relation is aid to be a function if no first element in the set of ordered pairs is paired with two different second elements
On observing the given table .we can see that for the same weight w, there are diffirent n- valve . that is same of the w-valve have more than one N-valve
Thus the reletion defind by the set of order pairs
Hence, the reletion defind by the set of order pairs
c.
Find a linear model that contains the points.
c.

Answer to Problem 18AYU
Explanation of Solution
Given information:
The following data represents the weight (in grams) of a box of raisins and the number of raisins in the box.
Select two points and find a linear model that contains the points.
Calculation:
Consider points,
Slope
So,
Now find the equation of line that contains the points using point-slope form.
Now substitute
Hence, the equation of line is,
d.
Graph the line on scatter plot.
d.

Answer to Problem 18AYU
Explanation of Solution
Given information:
The following data represents the weight (in grams) of a box of raisins and the number of raisins in the box.
Graph the line on scatter plot drawn in part
Calculation:
In order to graph the line
Similarly other points are,
Let Graph the line on scatter plot.
Hence, the graph of line is plotted.
e.
Use the linear model to predict the number of calories in a candy bar.
e.

Answer to Problem 18AYU
Explanation of Solution
Given information:
The following data represents the weight (in grams) of various candy bars and the corresponding number of calories.
Use the linear model to predict the resin in the box weight
Calculation:
Use the linear model to predict the resin in the box weight
Function is
Hence,
f.
Interpret the slope of the line.
f.

Answer to Problem 18AYU
Explanation of Solution
Given information:
The following data represents the weight (in grams) of various candy bars and the corresponding number of calories.
Interpret the slope of the line found in part
Calculation:
Interpret the slope of the line.
If the weight of is increased by
Hence, the number of resins increased by
Chapter 3 Solutions
Precalculus Enhanced with Graphing Utilities
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