Which equations show a direct variation between x and y when solved for y?

Choose all answers that are correct.

A. y-9=2x+9

B. y= 4/7x

C.4+y=1/3x + 4

D.y=3-x

Question

Which equations show a direct variation between x and y when solved for y?

 

Choose all answers that are correct.
	
	
 
A. y-9=2x+9
	

	
 
B. y= 4/7x
	

	
 
C.4+y=1/3x + 4
	

	
 
D.y=3-x

anonymous · Answer

@mathmath333

alexandervonhumboldt2 · Answer

direct variation has form y=kx

anonymous · Answer

What does the k stand for?

mathmath333 · Answer

k can be any number other than 0

alexandervonhumboldt2 · Answer

k is just a coefficient

alexandervonhumboldt2 · Answer

yeah

alexandervonhumboldt2 · Answer

dont forget to simplify all equations: there are more than 1 answer.

anonymous · Answer

So would D.y=3-x be one of them because x=0?

alexandervonhumboldt2 · Answer

nooooo

alexandervonhumboldt2 · Answer

D has form y=kx+b  and we need y=kx

anonymous · Answer

Well B and D are kinda like the same thing so can the be crossed out

alexandervonhumboldt2 · Answer

nooooB is actually corect

alexandervonhumboldt2 · Answer

y= 4/7x    k=4/7.  so it satisfies y=kx form

anonymous · Answer

Ohhh

alexandervonhumboldt2 · Answer

try finding a second answer now   there is one more

anonymous · Answer

Would it be C? Because 1/3x or 1/3

alexandervonhumboldt2 · Answer

yeah C is correct as well.

alexandervonhumboldt2 · Answer

@pooja195    if you are  global. please do not report me. I did NOT gave a direct answer. have a nice day.

anonymous · Answer

Its fixed thanks for the help @AlexandervonHumboldt2

alexandervonhumboldt2 · Answer

:) yw