A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 2 years ago
some one PLEASE explain direct variation to me????
anonymous
 2 years ago
some one PLEASE explain direct variation to me????

This Question is Open

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.0Direct variation is the idea that if one variable increases in value, the other will increase in value. Conversely, if one variable decreases in value, the other will decrease in value. So let's say we have a variable y and it directly varies with x. This would imply that y = x. However, it's not this exactly, but it's close. It's actually y = k*x where k is some fixed number.

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0When two variable quantities have a constant (unchanged) ratio, their relationship is called a direct variation. It is said that one variable "varies directly" as the other. The constant ratio is called the constant of variation. The formula for direct variation is y = kx, where k is the constant of variation. "y varies directly as x" Solving for k: (y = numerator; x = denominator) In a direct variation, the two variables change in the same sense. If one increases, so does the other. Graphically, direct variation y = kx when k > 0. As x increases, y increases. For example: The weekly salary a woman earns, S, varies directly as the number of hours, h, which she works. Express this relation as a formula. Answer: S = hk or (where k is the constant)
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.