Question

Which of the following statements are true about the function y = 3x?
The function is a direct variation.
The function goes through the origin.
The constant of variation is .
y is 6, when x is 2.


I and II

I and IV

I, II, III, and IV

I, II, and IV

Answer 1

i. the function is a direct variation
ii. the function goes through the origin.
iii. the constant of variation is 1/3.
iv. y is 6, when x is 2.

Answer 2

Well, think about (iii). How can (iii) be true is you have \(y = \color{red}3x\)? Wouldnt the constant of variation then be \(3\)? :P So therefore (iii) is false.

Answer 3

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