Question

Which graph represents a function?

Answer 1

Answer:

the last one

Step-by-step explanation:

use the horizontal line test to find out if its a function

for more information Google horizontal line test

hope this helps :)

Answer 2

Answer:

The last option (The line going straight left to right)

Step-by-step explanation:

For a graph to represent a function, the line must pass the vertical line test.

I've attached an image to look at how the vertical line test works.