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Concept explainers
a
The domain and range of the relation
a
![Check Mark](/static/check-mark.png)
Answer to Problem 11PPE
Domain:
Range:
Explanation of Solution
Given:
The relation is
Where x = No. of pictures printed.
y = Cost in dollars.
Now, values of x will constitute the domain for this relation and x is the No. of pictures printed whose possible values can be positive integers only.
Hence, domain of the relation is:
Also, depending on the values of x the values of y will be positive real numbers which will be a multiple of 0.13.
Hence, range of the relation is:
When we observe the relation
Hence, the relation is a function.
Conclusion:
Therefore, the domain of the relation is
b
To write the equation in function notation and interpret it
b
![Check Mark](/static/check-mark.png)
Answer to Problem 11PPE
The function representation of equation is
Explanation of Solution
Since the given equation is,
In order to obtain the function form of equation substitute y as f(x),
Then the function representation of equation becomes
Now if the no. of pages to be printed is 6 which means x = 6
Then,
That means, to print 6 pages, the cost will be 0.78 dollars.
c
To find
c
![Check Mark](/static/check-mark.png)
Answer to Problem 11PPE
Explanation of Solution
Since the given equation is,
Then the function representation of equation becomes
Now if the no. of pages to be printed is 5 which means x = 5
Then,
This means that, to print 5 pages the cost will be 0.65 dollars.
Similarly, if the no. of pages to be printed is 12 which means x = 12
Then,
This means that, to print 12 pages the cost will be 1.56 dollars.
Conclusion:
The values are:
Chapter 1 Solutions
High School Math 2011 Algebra 1 Student Companion Grade 8/9
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