Posted by **raquel** on Monday, January 14, 2013 at 7:19pm.

what is the rule if the input is 1 and output is 9 and input is 2 and output is 12 and the input is 3 and output 16

- math,geometry -
**Reiny**, Monday, January 14, 2013 at 9:26pm
1 ---> 9

2 ---> 12

3 ---> 16

hard to tell, it is not linear,

I don't know what level this is,

let's assume it is a quadratic

I did some quick calculations and got

y = (1/2)x^2 + (3/2)x + 7

or

y = (x^2 + 3x + 14)/2

works for your 3 values

## Answer This Question

## Related Questions

- math - i need help with patterns and equations i cant find the rule it goes like...
- Algebra - I have an input / output machine I need a rule I can use for any value...
- 7 th grade math - What is the rule for this function? input 1 output 3 input 2 ...
- Math - Hey, I need your help! I have an input output table that I need the ...
- math - i need help! my last math question cant figure out! whats the rule for ...
- Math - What is the rule for this function? input 2 output 5 ,input 4 output 13, ...
- math - Please help me find the rule input 0 output 2 then input 1 output 4 next ...
- math - What is the rule for this function? Input 1 output 3 Input 2 output 5 ...
- math - What is the rule for this function? Input 1 output 3 Input 2 output 5 ...
- Math - Need help the input: 3 output:9 input:5 output:25 input:2 output: blank ...

More Related Questions