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January 25, 2015

January 25, 2015

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

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 8:39pmWhy not?

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

- Math -
**Count Iblis**, Wednesday, March 25, 2009 at 9:29pmIf 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 5:55pmI don't think y is linear. If it is, what's the equation? y=.....

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