A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Can someone explain to me how to relate a vertical line test to understanding functions?
anonymous
 one year ago
Can someone explain to me how to relate a vertical line test to understanding functions?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sure, what do you not understand though?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0just draw vertical lines if graph of the function hit the vertical lien more than one spot then that graph doesn't represent a function ???q

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure how to explain it really. Doesn't the line have to go through a function, like a U shape, or something like that? I just need a better way of understanding it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Imagine a graph, that has a equation that looks like a U when graphed. This equation would be a function. If the equation when graphed looked like a Z it would not pass the vertical line test.

ybarrap
 one year ago
Best ResponseYou've already chosen the best response.0See my answer to a similar question earlier today  http://openstudy.com/users/ybarrap#/updates/5574cbc8e4b01d0053ac2507

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is because you have two \(x\) values.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it cant pass through two lines, right? Ok, thank you!

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433726425861:dw like this and ofc not a perfect graph lel :P:P

ybarrap
 one year ago
Best ResponseYou've already chosen the best response.0It can't pass through two POINTS.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so tell me does this graph pass the vertical line test, and is it a function: \[f\left(x\right)\ =\ 5x^2\ +\ 2\] You can use: https://www.desmos.com/calculator to graph.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0All right, just wanted to make sure.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0vertical line means no slope

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you explain the inputs & outputs when graphing a function? I never got it.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0true you don't have a function if you have more than one output for a given input

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0By inputs, and outputs when graphing a function do you mean something like this: \[f(x) = 5x + 1\] \[f(5) = 5x + 1 \rightarrow f(5) = 5(5) + 1 = 26\] So a point you would graph would be \((5, 26)\). Basically you keep feeding in \(x\) values to get \(y\) values to graph you equation. (The line would go through the points, you plot down.)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How would I go about something like this? 'Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature'

ybarrap
 one year ago
Best ResponseYou've already chosen the best response.0The question about temperature and time is is about identifying the independent variable. The independent variable is not a function of anything. The thing measured, in this case, temperature, is a function of time. So here time would be the xaxis and temperature would be the yaxis. You give me the time, I give you a unique temperature. The other way around, if I give you a temperature, there could be multiple times of day where the temperature could be that value. So temperature could NOT be a function for that reason. Usually you want to know what the temperature will be at a certain time of day;. This is another way you know that temperature is a function of time.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0a simple question "which variable is controlled?" the controlled variable is the independent variable. The one that varies is the output, the dependent variable.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433731436123:dw

ybarrap
 one year ago
Best ResponseYou've already chosen the best response.0You're welcome @Kitt020912 .
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.