Answer:
Yes
Step-by-step explanation:
If there is a repeat of a number in the domain (x-axis), the relation is not a function. In this case, there are no repeats in the domain. Therefore, the relation is a function.
Answer:
Yes
Step-by-step explanation:
A function is a relation between sets that associates to every element of a first set exactly one element of the second set. In the question we see coordinates of points in which the x-coordinate is associated to an y-coordinate. Taking x as the independent variable, then y = f(x). Data can be rewritten in a table format as follows:
x | f(x)
-2 | 2
-1 | 4
1 | 2
3 | -5
This relation is a function because for every element of x there is only 1 element of f(x)
