Question

http://prntscr.com/d4ttjl

Answer 1

You can check by plugging in values for the x and seeing what you get for the y while being on the graph.

Answer 2

is it A?

Answer 3

I have to say only one works.

Answer 4

No, it's not.

Answer 5

Watch:

Answer 6

Look at two on the x-axis. Look up that line, it hits 4 across from the y-axis.
So, when you plug in 2 into the equation, you will get 4.

Answer 7

Try: 1/2(2) - 3? What does that equal?
Try: 1/2(2) + 3? What does that equal?

You are hoping for 4 to be the output.