Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
ihavemathquestions
Group Title
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
 2 years ago
 2 years ago
ihavemathquestions Group Title
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
 2 years ago
 2 years ago

This Question is Closed

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.0
please :(
 2 years ago

benzilla Group TitleBest ResponseYou've already chosen the best response.2
If y varies directly with x, then all the ratios will be the same. Here is an example if y is 2 when x is 1 and y is 4 when x is 2 and y is 6 when x is 3, then this shows direct variation. K=y/x. Now go back and determine if the numbers on your chart vary this way. In my example, you will notice they all vary by 2. If the y value is a same multiple of x for every x and y in your chart, then that is a direct variation.
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.0
whats the answer?
 2 years ago

max0236 Group TitleBest ResponseYou've already chosen the best response.1
So you have to find the constant variation and write the equation \[\frac{ y }{ x } = \frac{ 11 }{ 7 }=\frac{ 13 }{ 8 }=\frac{ 15 }{ 9 }=\frac{ 17 }{ 10 }=?\]From what I can see it does not seem to have any variation. for example \[\frac{ 6 }{ 3 }=\frac{ 2 }{ 1 }=\frac{ 4 }{ 2 }= \frac{ 12 }{ 6 }=2\] here the y varies directly with x. The constant of variation is 2. The equation is y = 2x.
 2 years ago

max0236 Group TitleBest ResponseYou've already chosen the best response.1
A linear function written in the form y = kx , where k is not equal to 0 represents direct variation. The slope, k, is constant. The constant, k , is often referred to as the constant of variation. You can write the constant of variation as a ratio y : x . And unless someone else has any ideas I go with no variation that's the best I can do
 2 years ago

benzilla Group TitleBest ResponseYou've already chosen the best response.2
Max you are correct. 13/8 does not equal 11/7
 2 years ago
See more questions >>>
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.