I bought Excell 2010 but is confusing me a lot basically i just need to graph a

X and Y table but it is showing two lines (x is a line and Y is a line) while what i want is to show only one line X VS Y, i dont know why it is showing two lines as if the were independent..

Can anyone please advise how to use it?

```
PS my values are
X Y
1.0 1.5
2.8 3.9
4.2 4.6
```

I am not sure what to add here? or where