Variation Functions Flashcards
1
Q
What is Direct Variation?
A
The relationship between two variables, x and y, that can be written in the form y=kx. k cannot = 0. The ratio of the two quantities is always constant.
2
Q
What is the Constant of Variation?
A
k in y=kx.
3
Q
What is Joint Variation?
A
A variation among three variables that can be written in the form y=kxz. k is still the constant of variation.
4
Q
What is the formula for Inverse Variation?
A
y=k/x.
5
Q
What is the relation of the two quantities in Inverse Variation?
A
The product of the two quantities is constant.
6
Q
What is Combined Variation?
A
A relationship that combines both direct and inverse variation. Quantities that vary directly appear in the numerator, and quantities that vary inversely appear in the denominator.
