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Are these ordered pairs in direct variation 1 1 3 3 5 5?
yes
What does the k represent in the direct variation ykx?
The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities. The formula for direct variation is. y=kx (or y=kx ) where k is the constant of variation .
What are the ordered pairs of x4y and 3x-2y20?
there are none, ordered pairs come from equations like x = 2y -5
A set of ordered pairs?
Coordinates
What is a rule for the function identified by this set of ordered pairs?
You didn't show the Ordered Pairs so there is no way this question could be answered.
Is 20 a direct variation?
No. It is a single number. For a direct variation you need a minimum of two pairs of ordered numbers.
Are these ordered pairs in direct variation 1 1 3 3 5 5?
yes
Are these ordered pairs in direct variation -1 0 3 2 9 6?
No. For direct variation, any order pair with a 0 in it MUST be (0,0).
What are the ordered pairs for 20?
The Ordered Pairs are 1x20, 2x10, and 5x4.
What is -1 in ordered pairs?
-1 is a one-dimensional entity. It can have no equivalent in ordered pairs.
When two quantities form a direct variation what is it called?
A direct variation (!) or direct reelationship.
How do you find y in a set of ordered pairs?
Y is the second number in a set of ordered pairs.
Is direct variation a special case?
Direct variation is not a special case.
Is y equals 3x direct variation?
Yes, it is direct variation.
Is y equals 2x plus 5 a direct variation if so what is the constant of variation?
No, it is not a direct variation.
Does every linear equasion represent a direct variation relationship?
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!
Which ordered pairs are in the second quadrant?
Ordered pairs that have a negative x and a positive y are in the second quadrant.
