Hours worked
1
2
3
4
Dollars Earned
10
20
30
40
If John earns $10.00 an hour, the above table shows the relationship between hours worked and dollars earned. From this table, we can see that dollars earned is equal to hours worked multiplied by 10.
y=3x is a direct variation in that y varies directly with x by a factor of 3. Any linear equation (a polynomial of degree 1, which is a polynomial equation with a highest exponent of 1), is a direct variation of y to x by some constant, and this constant is simply the coefficient of the "x" term. Other examples: y=(1/2)x is a direct variation, and the constant of variation is 1/2 y=-9x is a direct variation, and the constant of variation is -9
Speed and distance: the faster you go, the further you can go in a fixed amount of time.
A direct variation (!) or direct reelationship.
what are examples of bacterial variation?
Direct variation is not a special case.
Yes, it is direct variation.
No, it is not a direct variation.
A variable, Y, is in direct square variation with a variable, X, if Y = kX2 where k is some (non-zero) constant.
I have recently been doing all these direct variation problems but not every linear relationship is a direct variation... But every direct variation is a linear relation!
If a variable X is in inverse variation with a variable Y, then it is in direct variation with the variable (1/Y).
Human species.
When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation. y=2x is direct variation y=x+2 is not direct variation