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Which of the following represents a direct variation function?
Any function of the form Y = cX where X and Y are variables and c is a constant.
What does the math term direct variation mean?
Two variables, X and Y, are in direct variation if Y = kX for some constant k. The graph of Y as a function of X will be a straight line through the origin.
How do you use a table of data to check whether the relationship between two variables is a direct variation?
if it passes through (0,0) then it is a direct variation
Is y9x 1 a direct variation function?
No.
How do you find the constant and slope for direct variation equations?
For a direct variation equation the constant MUST be 0. Then the ratio of a pair of values of the two variables is the slope.
Is a linear function a direct variation?
yes * * * * * No, it is not. In a direct variation, if one of the variables is 0, the other MUST also be 0. In a linear function, they will be the intercepts.
How do you know if the equation is a direct variation?
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
Which of the following represents a direct variation function?
Any function of the form Y = cX where X and Y are variables and c is a constant.
Does the graph of a direct variation pass through the origin?
yes, a graph of a direct variation must pass through the origin because direct variation is always in form of y=mx where x and y are variables and m is a constant.
What does the math term direct variation mean?
Two variables, X and Y, are in direct variation if Y = kX for some constant k. The graph of Y as a function of X will be a straight line through the origin.
How do you use a table of data to check whether the relationship between two variables is a direct variation?
if it passes through (0,0) then it is a direct variation
Does ten and three fourths show direct variation?
No. Direct variation describes a relationship between two variables. It has nothing to do with the value of a single number.
Is y9x 1 a direct variation function?
No.
What is the difference between direct variation and indirect variation?
Direct variation occurs when two variables change in the same direction; as one increases, the other also increases, typically expressed as ( y = kx ), where ( k ) is a constant. Indirect variation, or inverse variation, happens when one variable increases while the other decreases, represented as ( y = \frac{k}{x} ). In direct variation, the ratio of the two variables remains constant, while in indirect variation, the product of the two variables remains constant.
How do you find the constant and slope for direct variation equations?
For a direct variation equation the constant MUST be 0. Then the ratio of a pair of values of the two variables is the slope.
Can slope k of a direct variation be positive?
The slope of the graph of a direct variation is always positive.
What is direct square variation in math?
direct square variation is a function that relates the same or equal constant ratio. It is a function that is typically used in different kinds of algebra.
