SOLUTION: Direct variation or inverse variation? Please help. I don't understand how to tell variations apart. y=3x

Question 162641This question is from textbook saxon algebra 2
: Direct variation or inverse variation?
Please help. I don't understand how to tell variations apart.
y=3x This question is from textbook saxon algebra 2

Found 2 solutions by KnightOwlTutor, scott8148:
Answer by KnightOwlTutor(293) (Show Source): You can put this solution on YOUR website!
This is an example of a direct variation. Other examples are y=x^2 or y=x^3
As x increases y also increases.
An inverse is y=1/x y=1/x^2 or y=1/x^3
As x increases in value y decreases

Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
increase (or decrease) one quantity (by multiplying or dividing)

the other quantity will have to change to maintain the equality

if they change the same way __ direct variation
__ if they change in opposite ways __ inverse variation

y=3x __ if y gets twice as large, then x must get twice as large to maintain the equality
__ direct variation
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