Question
For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
X Y
4 6
8 12
10 15
X Y
4 6
8 12
10 15
Answers
Steve
just divide each y by its x. Is the ratio constant?
If so, that means y/x = k,or y=kx, a direct variation.
If so, that means y/x = k,or y=kx, a direct variation.