Posted by Anonymous on .
For which table(s) of values in Exercises 39–42 is the relationship
linear? Tell how you decided. Write the equation for each linear
relationship.
x y
5 20
10 30
15 40
20 50
25 50
30 50

Math 
bobpursley,
Look at y. It stays constant at the end. If it were always constant, it would be linear...a horizontal line with zero slope. But near the origin, it is is not constant.
The relation is not linear. 
Math 
Karen,
Thank you! :)

Math 
Nicole,
So, no part of the table is linear? I mean, the x=5, y=20; x=10, y=30; & x=15, y=40, none of those are linear either? Or is it because of the constant at the end that none of it is linear?