To represent:
The given relation as a graph and as a mapping diagram. Tell whether the given relation is a function. Explain your reasoning.
Answer to Problem 15E
The given relation is a function.
Explanation of Solution
Given:
A relation:
x | 0 | 1 | 2 | ||
y | |
Calculation:
Upon graphing our given relation, we will get our required graph as shown below:
The mapping diagram of our given relation would look like:
We know that a relationship will be also a function, when each input in the domain has exactly one specific corresponding output.
We know that for a relation to be a function, one x- value cannot have two y -values, while two or more x- values can have same y- value.
Upon looking at our given ordered pairs, we can see that each x- value corresponds to a specific y- value.
Therefore, the given relation is a function.
Chapter 8 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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