Concept explainers
a.
To graph the function and check the values for what distances is
a.
Answer to Problem 44PPE
Explanation of Solution
Given information:
As radio signals move away from a transmitter, they become weaker, the function
Calculation:
As radio signals move away from a transmitter, they become weaker, the function
The graph of the functions is shown below
From the graph it is clear that
b.
The signal strength at 10 mi, 1mi and 0.1 mi.
b.
Answer to Problem 44PPE
Explanation of Solution
Given information:
As radio signals move away from a transmitter, they become weaker, the function
Calculation:
In order to find the signal strength at 10 mi, substitute
So, at 10 mi the signal strength is 16.
Similarly, to find the signal strength at 1 mi, substitute
So, at 1 mi the signal strength is 1600.
And to find the signal strength at 0.1 mi, substitute
So, at 0.1 mi the signal strength is 160000.
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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