A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
anonymous
 3 years ago
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.

This Question is Closed

agent0smith
 3 years ago
Best ResponseYou've already chosen the best response.1You can either use the slope formula, \[m = \frac{ y _{2}y _{1} }{ x _{2}x _{1} }\] or more simply, because it's only of the form y = mx, just divide each y term by it's x term, and check they all give the same value ie 24/6 = 72/18 = 216/54 = 648/162 = Check they all equal the same number.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0they all equal 4 @agent0smith

agent0smith
 3 years ago
Best ResponseYou've already chosen the best response.1Which means each x is multiplied by 4 to get y, so the constant of variation is 4

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0hmm. ok so how would i know which answer is right? yes; k = 4; y = 4x yes; k = 3; y = 3x yes; k = 6; y = 6x no

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0i think that no is not the right answer @agent0smith

agent0smith
 3 years ago
Best ResponseYou've already chosen the best response.1note that k is the constant of variation, and the constant of variation is 4 from what you worked out above.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0thank you so much @agent0smith i really appreciate it <3
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.