Tuesday

October 21, 2014

October 21, 2014

Posted by **ggift** on Friday, September 11, 2009 at 6:58am.

X 5 10 15 20 25 30

Y 20 30 40 50 50 50

I don't understand this at all...please help!!!

- ALGEBRA -
**bobpursley**, Friday, September 11, 2009 at 8:56amIf y= k x + b, a linear relationship, lets increment it a bit.

changeiny= k*changeinX

Notice no matter what values x and y have, the changes are related by k.

Take the above data. Notice the first increment of x, 5 to 10, A change of 5. The change in y is 10 (20 to 30). The ratios of y/x is 2 (10/5). That ratio is x.Now try other places in the data.

Look at the end, x goes from 25 to 30, a change of 5. But y does not change (50 to 50). We would have expeced a change ratio of 2, or 2*5=10 if it were linear.

So the data is not a linear relationship.

**Answer this Question**

**Related Questions**

math - For which table(s) of values in Exercises 39–42 is the relationship ...

Algebra - For which table(s) of values in Exercises 39–42 is the relationship ...

algebra - Which table of values is a linear relationship? Write an equation for ...

Math - For which values is the relationship linear? Tell how you decided. Write ...

Math - For which table(s) of values in Exercises 39–42 is the relationship ...

math - use a scatter plot to determine the relationship between the x values and...

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 ...

Algebra - Determine if the relationship represented in the table is linear. If ...

math - Tell if the relationship is linear? Write the equation for the ...