i have a question over some of the stuff i am doing right now. comparing lines like figuring out stuff like for example.. y= x-1 and you have 3 lines and you have to figure out which one matches up with that. i find that very confusing. can someone help me?

Begin by taking some 𝑥-values and figure out what their corresponding 𝑦-values should be. Example: 𝑦 = 𝑥 − 1 𝑥 = 1 ⇒ 𝑦 = 0 𝑥 = 2 ⇒ 𝑦 = 1 𝑥 = 3 ⇒ 𝑦 = 2 Now you graph the points (1, 0), (2, 1) and (3, 2) to see which one of the lines they belong to.

I don't understand the independent dependent varbials im stuck can someone explain this and how can you tell which is which

Independent variables are not affected by external factors. For example, Tommy runs 7 meters/second. In this example, there are two variables; time and distance. In order to find which one is independent and which one is dependent, we need to think logically. Is time affected by distance or is distance affected by time? The correct answer is the distance is affected by time. If Tommy ran for 2 seconds, he would run 14 meters. Whatever is being affected by another variable is the dependent variable. The variable changing another variable but cannot be changed by another variable is called the independent variable. An easy way to remember this is to think of it this way; Independent means by itself (rough definition) and dependent means (relying on something). Again, whatever is affected by another variable is the dependent variable because it relies on the value of the other variable. A variable that isn't determined by another variable's value is an independent value. If you're still confused, don't hesitate to ask. I hope this helped!

this was to quick can you make a new video but slower

you could make the video slower if you want

the biggest thing that confuses me on here is using decimals and I get even more lose when using them in fractions and I can't find a vid to clear that up could someone please help me?

Can’t you just convert fractions to decimals?

Khanacademy, can u make a 10 minute video of this again? I’m getting so confuse.

It'll be easier the more you practice. I recommend rewatching it!

Im stuck i don't understand at 0:15 already.. its confusing

What he was trying to show was that, using the table above, you can plot at least two points on the graph. Since it's about getting points on each correct answer, you should know that there can't be any negative answers. There are x and y coordinates, which I think you know by now. x= 1 (Correct Answer) and y=5 (Points) So the graph there shows that you can plot two points. One I already gave you, which is (1,5), and the next one is (2,10). Hope this helped.

Main content

MAP Recommended Practice

Course: MAP Recommended Practice > Unit 17

Lesson 28: Dependent and independent variables

Dependent & independent variables: graphing

Name: Dependent & independent variables: graphing
Uploaded: 2013-07-15T19:15:42Z
Description: When you answer math quiz questions, each correct answer earns you 5 points. The number of correct answers (x) and total points (y) are related by the equation y = 5x. This relationship can be visualized on a graph.

Google Classroom

When you answer math quiz questions, each correct answer earns you 5 points. The number of correct answers (x) and total points (y) are related by the equation y = 5x. This relationship can be visualized on a graph. Created by Sal Khan.

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Jenna
Posted 5 years ago. Direct link to Jenna's post “i have a question over so...”
i have a question over some of the stuff i am doing right now. comparing lines like figuring out stuff like for example.. y= x-1 and you have 3 lines and you have to figure out which one matches up with that. i find that very confusing. can someone help me?
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(16 votes)
Answer
- Jerry Nilsson
  Posted 5 years ago. Direct link to Jerry Nilsson's post “Begin by taking some 𝑥-v...”
  Begin by taking some 𝑥-values and figure out what their corresponding 𝑦-values should be.
  
  Example: 𝑦 = 𝑥 − 1
  𝑥 = 1 ⇒ 𝑦 = 0
  𝑥 = 2 ⇒ 𝑦 = 1
  𝑥 = 3 ⇒ 𝑦 = 2
  
  Now you graph the points (1, 0), (2, 1) and (3, 2) to see which one of the lines they belong to.
  Button navigates to signup page
  (22 votes)
🌻𝒜𝓁𝑒𝓍💫💛🎤
Posted 4 years ago. Direct link to 🌻𝒜𝓁𝑒𝓍💫💛🎤's post “I don't understand the in...”
I don't understand the independent dependent varbials im stuck can someone explain this and how can you tell which is which
Button navigates to signup pageComment on 🌻𝒜𝓁𝑒𝓍💫💛🎤's post “I don't understand the in...”
(9 votes)
Answer
- Victor
  Posted 4 years ago. Direct link to Victor's post “Independent variables are...”
  Independent variables are not affected by external factors. For example, Tommy runs 7 meters/second. In this example, there are two variables; time and distance. In order to find which one is independent and which one is dependent, we need to think logically. Is time affected by distance or is distance affected by time? The correct answer is the distance is affected by time. If Tommy ran for 2 seconds, he would run 14 meters. Whatever is being affected by another variable is the dependent variable. The variable changing another variable but cannot be changed by another variable is called the independent variable. An easy way to remember this is to think of it this way; Independent means by itself (rough definition) and dependent means (relying on something). Again, whatever is affected by another variable is the dependent variable because it relies on the value of the other variable. A variable that isn't determined by another variable's value is an independent value. If you're still confused, don't hesitate to ask. I hope this helped!
  Comment on Victor's post “Independent variables are...”
  (22 votes)
davideryk
Posted 3 years ago. Direct link to davideryk's post “this was to quick can you...”
this was to quick can you make a new video but slower
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(7 votes)
Answer
- Brocha Zirkind
  Posted 3 years ago. Direct link to Brocha Zirkind's post “you could make the video ...”
  you could make the video slower if you want
  Comment on Brocha Zirkind's post “you could make the video ...”
  (7 votes)
Charity Oduwegwu
Posted 5 years ago. Direct link to Charity Oduwegwu's post “i dont still understantd ...”
i dont still understantd how to answer the question on the quiz
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(8 votes)
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JC Furne ☺™
Posted 9 years ago. Direct link to JC Furne ☺™'s post “Im stuck i don't understa...”
Im stuck i don't understand at
0:15
already.. its confusing
Button navigates to signup pageComment on JC Furne ☺™'s post “Im stuck i don't understa...”
(4 votes)
Answer
- Kiranima
  Posted 8 years ago. Direct link to Kiranima's post “What he was trying to sho...”
  What he was trying to show was that, using the table above, you can plot at least two points on the graph. Since it's about getting points on each correct answer, you should know that there can't be any negative answers. There are x and y coordinates, which I think you know by now.
  
  x= 1 (Correct Answer) and y=5 (Points)
  So the graph there shows that you can plot two points. One I already gave you, which is (1,5), and the next one is (2,10).
  Hope this helped.
  Button navigates to signup page
  (8 votes)
bradsantos85
Posted 4 years ago. Direct link to bradsantos85's post “the biggest thing that co...”
the biggest thing that confuses me on here is using decimals and I get even more lose when using them in fractions and I can't find a vid to clear that up could someone please help me?
Button navigates to signup pageComment on bradsantos85's post “the biggest thing that co...”
(6 votes)
Answer
- Leiter, Andrew
  Posted 4 years ago. Direct link to Leiter, Andrew's post “Can’t you just convert fr...”
  Can’t you just convert fractions to decimals?
  Comment on Leiter, Andrew's post “Can’t you just convert fr...”
  (3 votes)
mentaltiger2010
Posted 3 years ago. Direct link to mentaltiger2010's post “Khanacademy, can u make a...”
Khanacademy, can u make a 10 minute video of this again? I’m getting so confuse.
Button navigates to signup pageComment on mentaltiger2010's post “Khanacademy, can u make a...”
(5 votes)
Answer
- carz
  Posted 7 months ago. Direct link to carz's post “It'll be easier the more ...”
  It'll be easier the more you practice. I recommend rewatching it!
  Button navigates to signup page
  (3 votes)
1589033
Posted 3 years ago. Direct link to 1589033's post “how do i make the equatio...”
how do i make the equations I don't understand
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(6 votes)
Answer
roofiabid
Posted 4 years ago. Direct link to roofiabid's post “I have still no idea how ...”
I have still no idea how to get the independent variable for a graph.
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(5 votes)
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Mariah </3
Posted 3 years ago. Direct link to Mariah </3's post “i dont know how to figure...”
i dont know how to figure out the graph
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(4 votes)
Answer

Video transcript

On your math quiz, you earn 5 points for each question that you answer correctly. In the table below, x represents the number of questions that you answer correctly, and y represents the total number of points that you score on your quiz. Fair enough? The relationship between these two variables can be expressed by the following equation-- y is equal to 5x. Graph the equation below. So you could look at a couple of your points. You could say, well, look, if I got 0 questions right I'm going to have 0 points. So you could literally graph that point-- if I got 0 questions right, I get 0 points. And then if I get one question right, and the table tells us that, or we could logically think about it, every question I would get right I'm going to get 5 more points. So if I get one question right, I'm going to get 5 more points, and we saw that in our table as well. We saw that right over here-- one question, 5 points. We could also plot it two questions, 10 points, any of these. But you only have to do two points to define a line. So it looks like we are actually done here.