Suppose y varies directly as x, and y= 2 when x= 4. Which of the following statements is true?
The constant of variation is 2.
The constant of variation is 1/2 .
The constant of variation is 4.
The constant of variation is -4.

Question

Suppose y varies directly as x, and y= 2  when x= 4. Which of the following statements is true?
The constant of variation is 2.
The constant of variation is 1/2   .
The constant of variation is 4.
The constant of variation  is -4.

cwrw238 · Answer

y = kx  where k is a constant   (direct variation)
y is 2 when x = 4, so
2 = 4k
 can you continue?

anonymous · Answer

That would make the constant of variation be 1/2
Thank you(:

cwrw238 · Answer

ok