SOLUTION: I tried to figure this problem out and I got y = -12/9x. I am not sure if it is right and I need help Thank You. Write an equation of the direct variation that includes the poin

Question 198108: I tried to figure this problem out and I got y = -12/9x. I am not sure if it is right and I need help Thank You.
Write an equation of the direct variation that includes the point (9,-12)
Thank you
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I tried to figure this problem out and I got y = -12/9x. I am not sure if it is right and I need help Thank You.
Write an equation of the direct variation that includes the point (9,-12)
-------------------------
y = kx expresses direct variation between the variables x and y.
---------
Knowing that y = -12 when x = 9 allows you to solve for "k":
-12 = k(9)
k = -4/3
------------
So the equation you want is y = (-4/3)x
==============================================
Cheers,
Stan H.

RELATED QUESTIONS
Hi I am not sure if I am in the right section or not but this is my problem: The... (answered by rapaljer)

Hello, I am stuck on a problem for homework and need some help. I worked it out but am... (answered by Alan3354)

Hello this is my problem, I am a student in algebra 1, Introductory and Intermidiate... (answered by richard1234,ewatrrr)

what is the answer to y=3x+3 3x+2y=-12 I tried to figure it out... (answered by Earlsdon)

Okay, I asked this one Friday and nobody got back to me so I am asking it again. Here is... (answered by checkley71,nycsharkman)

I really need help. I have a problem that is 1/5+3/y=-3/5 and I know I think I got the... (answered by jim_thompson5910)

Hello! I am trying to figure out these integrals but I keep getting stuck. (also, not... (answered by richard1234)

I need help with this homework problem please! I cannot for the life of me figure it out. (answered by Alan3354)

I tried to figure out this problem and do not really know how to do it. Write a... (answered by solver91311)