Posted by **Angie** on Wednesday, March 25, 2009 at 8:36pm.

Is the relationship between y and x linear?

x y

0 2

4 5

8 8

12 11

i don't think it's linear.

- Math -
**Count Iblis**, Wednesday, March 25, 2009 at 8:39pm
Why not?

- Math -
**Angie**, Wednesday, March 25, 2009 at 9:02pm
because i can't write an equation for y.

- Math -
**Count Iblis**, Wednesday, March 25, 2009 at 9:29pm
If you assume that Y is linear, then you can write down an equation. Then you take the first two points to completely fix the undetermined constants in that equation.

Then you have arrived at the following conclusion:

Assuming that the relation is linear, y is given in terms of x as follows...

Then you check if the other points are consistent with this equation. If the relation is linear, they must be consistent with that equation. So, if it is not, then the relation cannot be linear.

- Math -
**Angie**, Thursday, March 26, 2009 at 5:55pm
I don't think y is linear. If it is, what's the equation? y=.....

## Answer this Question

## Related Questions

- Math - For which table(s) of values in Exercises 39–42 is the relationship ...
- Algebra - Determine if the relationship represented in the table is linear. If ...
- math - use a scatter plot to determine the relationship between the x values and...
- Math - For which values is the relationship linear? Tell how you decided. Write ...
- Algebra - For which table(s) of values in Exercises 39–42 is the relationship ...
- math - For which table(s) of values in Exercises 39–42 is the relationship ...
- math - Tell if the relationship is linear? Write the equation for the ...
- Math - Determine if the relationship represented in the table is linear. If it ...
- math - I need a definition for this constant rate of change when graphing in ...
- math - Determine if the relationship represented is linear. x=5,10,15,20,25,30 ...