i do not like this at all..

This is the start of the largest empire of the world called math. This is important. If you don’t like it but want to work in any field related to math or science you will have a hard time. Revise it. Try to see the beauty of math. I would recommend Vi Harts videos

i need help beause i do not really under stand

Eg. Equation: y=2x-4 Let x be 0, y= 2*0-4= 0-4= -4 Let x be 1, y= 2*1-4= 2-4= -2 Let x be 2, y= 2*2-4= 4-4= 0 and so on... Then we get points: (0,-4), (1,-2), (2,0), ... ----------------------------------------------------- Eg. Equation: y=(3/2)x-4 If x is 0, then y=(3/2)*0-4= 0 -4= -4 If x is 1, then y=(3/2)*1-4= 1.5-4= -2.5 If x is 2, then y=(3/2)*2-4= 3 -4= -1 and so on... So we get points: (0,-4), (1,-2.5), (2,-1), ...

I am so confused with the whole rise over run! it really is messing with my brain. I am so confused not just by the equation but I don't have a teacher to help me / guid me through this. And I don't have anyone to talk to help either. SO PLEASE HELP ME!

Slope means how steep a line is. We know how steep a mountain is judging on how vertical it is. Similar to slope of lines. We judge it by how vertical it is and how much it increases in the vertical direction when compared to the horizantal direction. That's where rise over run came from. Excellent question, by the way.

how to know when you have the correct numbers.

Once you have solved the problem plug your answers and see if both sides of the equation match.

Main content

Algebra basics

Course: Algebra basics > Unit 4

Lesson 6: Slope-intercept form intro

Graphing lines from slope-intercept form review

Google Classroom

Slope intercept form is y=mx+b, where m is slope and b is the y-intercept. We can use this form of a linear equation to draw the graph of that equation on the x-y coordinate plane.

Slope intercept form is y, equals, m, x, plus, b, where m is slope and b is the y-intercept.

Slope-intercept form is nice when you're drawing graphs.

For example, imagine we're given the equation y, equals, 2, x, plus, 7 and asked to graph it.

Straight from the equation, we know the y-intercept is 7.

And we know the slope is 2.

start text, S, l, o, p, e, end text, equals, start fraction, delta, y, divided by, delta, x, end fraction, equals, start fraction, 2, divided by, 1, end fraction, equals, 2

So, for every one unit we go to the right, we must go up two units:

Here is our final graph:

Want to learn more about graphing equation from slope-intercept form? Check out this video.

Practice

Problem 1

Current

Graph the following equation.

y, equals, minus, 4, x, minus, 1

Want more practice? Check out this exercise.

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ndsmith935
Posted 3 years ago. Direct link to ndsmith935's post “i do not like this at all...”
i do not like this at all..
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- 1140858
  Posted 9 months ago. Direct link to 1140858's post “This is the start of the ...”
  This is the start of the largest empire of the world called math. This is important. If you don’t like it but want to work in any field related to math or science you will have a hard time. Revise it. Try to see the beauty of math. I would recommend Vi Harts videos
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Posted 4 years ago. Direct link to sbabrrett's post “i need help beause i do n...”
i need help beause i do not really under stand
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- danaswe1010
  Posted 2 years ago. Direct link to danaswe1010's post “Eg. Equation: y=2x-4 Let...”
  Eg. Equation: y=2x-4
  
  Let x be 0, y= 2*0-4= 0-4= -4
  Let x be 1, y= 2*1-4= 2-4= -2
  Let x be 2, y= 2*2-4= 4-4= 0 and so on...
  
  Then we get points: (0,-4), (1,-2), (2,0), ...
  -----------------------------------------------------
  Eg. Equation: y=(3/2)x-4
  
  If x is 0, then y=(3/2)*0-4= 0 -4= -4
  If x is 1, then y=(3/2)*1-4= 1.5-4= -2.5
  If x is 2, then y=(3/2)*2-4= 3 -4= -1 and so on...
  
  So we get points: (0,-4), (1,-2.5), (2,-1), ...
  Comment on danaswe1010's post “Eg. Equation: y=2x-4 Let...”
  (23 votes)
chloef
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math people... how do they get this stuff
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  i know right is kinda hard
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when will we use this in our daily lives
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Grace Matson
Posted 4 years ago. Direct link to Grace Matson's post “I am so confused with the...”
I am so confused with the whole rise over run! it really is messing with my brain. I am so confused not just by the equation but I don't have a teacher to help me / guid me through this. And I don't have anyone to talk to help either. SO PLEASE HELP ME!
Button navigates to signup pageComment on Grace Matson's post “I am so confused with the...”
(17 votes)
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- Rocket Boys
  Posted 4 years ago. Direct link to Rocket Boys's post “Slope means how steep a l...”
  Slope means how steep a line is. We know how steep a mountain is judging on how vertical it is. Similar to slope of lines. We judge it by how vertical it is and how much it increases in the vertical direction when compared to the horizantal direction. That's where rise over run came from.
  
  Excellent question, by the way.
  Comment on Rocket Boys's post “Slope means how steep a l...”
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gigsrulesyay
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Khan Academy has done me so much help with school, you don't know man :)
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2024collettekitchen
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I wish I could do more. Thats the only thing, Could we do more problems at a time or do we have to stick with 4?
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coasterenthusiast
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I love how people from 4 years ago ask a question and someone from a month ago responds... a little late dude
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  im doing that right now wow
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DONTAVION876
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how to know when you have the correct numbers.
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- PI Technology Π
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  Once you have solved the problem plug your answers and see if both sides of the equation match.
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i think i kinda understand it
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