Question

Is this relation a function? Justify your answer
.
11
10
9
8
7
6
5
4
3
2
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8 9 10 11
A. Yes, because every and y-value is positive.
B. Yes, because the number of x-values is the same as the number of
p-values.
C. No, because two points with the same p-value have different -
values.
D. Yes, because every x-value has a single juvalue.

Answer 1

The relation given is a function because; Choice D: Yes, because every x-value has a single y-value.

Discussion:

Mathematically, a function from a set X to a set Y is an assignment of an element of Y to each element of X.

Conventionally, the set X is called the domain of the function and the set Y is called the codomain of the function.

Read more on mathematical functions:

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