Posted by DeWayne on Friday, September 7, 2012 at 12:02am.
What's the Rule
Input Output
0 1
1 3
2 7
3 11
4 15
What's the rule?
o 5
1 13
2 21
3 29
4 37

Math  Brooke, Friday, September 7, 2012 at 12:08am
For the first one, the rule is 4x1.
Plug the input into "x" and then check to see if you got the output right. Hope I helped! 
Math  kerry j, Friday, September 7, 2012 at 12:10am
Try 4 for the firt one
Input output
1 3+4
2 7+4
3 11+4
4 15+4
5 19+4
And 8 for the other...
Input output
0 5+8
1 13+8
2 21+8
3 29+8
4 37+8
5 45+8 
Math  DeWayne, Friday, September 7, 2012 at 12:13am
Thanks Brooke!

Math  Brooke, Friday, September 7, 2012 at 12:15am
You're welcome!

Math  DeWayne, Friday, September 7, 2012 at 12:16am
Thanks Kerry J but I did not understand it being 8, please explain. Thanks

Math  Brooke, Friday, September 7, 2012 at 12:20am
Also, for the second one the rule is 8x+5.
I think that is what Kerry J was referring to.