SOLUTION: which shows direct variation? a)y=4 b)y=3x-2 c)xy=10 d)y=-4x e)x=3 I couldnt find where to put this problem its from exam review thanks! : )

Question 196989: which shows direct variation?
a)y=4
b)y=3x-2
c)xy=10
d)y=-4x
e)x=3
I couldnt find where to put this problem
its from exam review
thanks! : )

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
which shows direct variation?
a)y=4
No variation
--------------------
b)y=3x-2
Direct; as x increases, y increases
--------------------
c)xy=10
Indirect ; as x increases, y decreases
---------------------------
d)y=-4x
Direct; as x increases y becomes more negative
---------------------------
e)x=3
None ; not a function
============================
Cheers,
Stan H.

RELATED QUESTIONS
Which 2 are parallel when graphed? a)y=1/3x+5 - y=1/3x-1 b)y=2x-1 - y=-2x+5 c)y=3x+4 - (answered by stanbon)

Which equation is a direct variation with a constant of variation of 2/3? A)y=2x+3... (answered by Edwin McCravy)

Name the rule (x)4,8,16,2 (y)-4,-3,-1,-4.5 I couldnt find anywhere to put this... (answered by stanbon)

Which of the following equations does not represent direct variation? A)y=5x... (answered by ikleyn)

Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y (answered by stanbon)

Please im asking someone to please give me a helping hand with the following questions. I (answered by stanbon)

Determine whether y varies directly with x. If so, find the constant of variation k and... (answered by longjonsilver)

At a summer camp there is one counselor for every 9 campers. Determine whether there is a (answered by rwm)

which of the following equations is a direct variation? A. y=2x B. y=x+2 C. y=2 D.... (answered by reviewermath)