A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inverse variation, write a function to model it.
x=3,9,13,20
y=9,27,39,60
I know it's direct but how do I write a function model to it?
anonymous
 3 years ago
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inverse variation, write a function to model it. x=3,9,13,20 y=9,27,39,60 I know it's direct but how do I write a function model to it?

This Question is Closed

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.4check : if the product xy is constant for all pairs of x,y then the variation is inverse, but if the ratio y/x is constant for all pairs of x,y then the variation is direct.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0but I don't get how to write a function model to it? :/

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.4so did u get it as inverse or direct ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0direct? it says in my notebook if both x and y increases then it's direct

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ooh, do i just put the numbers into the equation y=k/x?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.4yes, here if you note then, y/x = 9/3 = 3 y/x = 27/9 =3 y/x = 39/13 =3 so , you see everytime the ratio y/x turns out to be = 3 hence your function will also be y/x =3 or y =3x.

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.4yes, thats what i did, y= kx for direct . 9=k *3 > k=3 so, y=3x :)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I get it now! thank you very much :D xx
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.