
Concept explainers
U.S. Advertising Share A report showed that Internet ads accounted for
Write a linear equation that relates that percent
Find the intercepts of the graph of your equation.
Do the intercepts have any meaningful interpretation?
Predict the percent of print ad spending if Internet ads account for
(a)

A linear equation that relates that percent
Answer to Problem 124AYU
Solution:
A linear equation that relates that percent
Explanation of Solution
Given Information:
A report showed that Internet ads accounted for
Explanation:
Let,
If print ads accounted for
When
In ordered pair it can be written as
If print ads accounted for
When
In ordered pair it can be written as
Slope of the linear equation passing through the points
The general form linear equation is
Substitute
To find
Adding
Therefore, a linear equation that relates that percent
(b)

The intercept of the graph of equation that relates that percent
Answer to Problem 124AYU
Solution:
The
Explanation of Solution
Given Information:
A report showed that Internet ads accounted for
Explanation:
From the part (a), the linear equation is
To find
Multiply both sides by 8,
The
To find
The
(c)

Whether theintercept have any meaningful interpretation or not.
Answer to Problem 124AYU
Solution:
Yes.
Explanation of Solution
Given Information:
A report showed that Internet ads accounted for
Explanation:
To find
From the part (b), the
To find
From the part (b), the
Let,
Here, the both intercept are positive.
Since the percent of advertisement should not be negative.
Therefore, the intercept have meaningful interpretation.
(d)

The percent of print ad spending if Internet ads account for
Answer to Problem 124AYU
Solution:
The percent of print ad spending is
Explanation of Solution
Given Information:
A report showed that Internet ads accounted for
Explanation:
Let,
From the part (a), linear equation is
To find the percent of print ad spending if Internet ads account for
Therefore, the percent of print ad spending is
Chapter 1 Solutions
Precalculus
Additional Math Textbook Solutions
University Calculus: Early Transcendentals (4th Edition)
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A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Calculus: Early Transcendentals (2nd Edition)
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