Help me please this is really hard?

-1

3

3

Step-by-step explanation:

subtitute x values into the equation

Step-by-step explanation:

Well there is no real answer to this, but, replace the numbers, -1, 0 and 1 with the x, for example,

If x is -1, then y is

y=2*-1 + 1 which is -1, so y is -1

y=-1

second, for 0, 2*0+1 is 1, so y is 1

y=1

Third, if x is 1 then y is, y=2*1+1  so y is 3

y=3

so you're 3 y's would be, -1, 1 and 3.

Cheers!

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right