Question

Which relation Is a function? From the graphs ​

Answer 1

3rd one

Explanation:

because it's close

Answer 2

Bottom right

Explanation:

For a set of numbers to be function the independent variable must have only one value in the dependent variable.

You can do it with graphs or tables.

Here you can analyze each graph.

Top Left:

for x = -1, y = -1 and also y = 3, then it isnt a function because there are 2 values in y for 1 value in x

Top Right:

for x = 0, y = -1 and also y = 2, it isnt a function

Bottom Left:

for x = -2, y= -2 and also = 1, for x = 2, y = -2 and also y = 0, it isnt a function

Bottom right:

Each x has only 1 y. It is a function