anonymous
  • anonymous
What is the y-intercept of the equation 2x + 3y = 12? -2/3 4 6 12
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Astrophysics
  • Astrophysics
Hey set it up in y = mx+b (b = y - intercept) format that way you will be able to see the y - intercept clearly.
Astrophysics
  • Astrophysics
So solve for y, do you know how to do that?
anonymous
  • anonymous
yes

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ganeshie8
  • ganeshie8
do it
anonymous
  • anonymous
ok
ganeshie8
  • ganeshie8
2x + 3y = 12 start by subtracting 2x both sides
Astrophysics
  • Astrophysics
What do you mean
anonymous
  • anonymous
u - 2x from 12 =10 2x - 3y and u get 1y
ganeshie8
  • ganeshie8
remember this in algebra : you can't add/subtract apples and coconuts
ganeshie8
  • ganeshie8
2x + 3y = 12 subtracting 2x both sides : 2x + 3y = 12 -2x -2x you should get : 3y = 12 - 2x
anonymous
  • anonymous
ok
ganeshie8
  • ganeshie8
but "y" still has that 3 attached to it how to get rid of that 3 ?
Astrophysics
  • Astrophysics
Often for these algebraic problems to move something to the other side we use the opposite operation of what already exists, so since there's a 3 attached to the y, which means it's being multiplied. What can we do to get rid of the 3?
Astrophysics
  • Astrophysics
Don't worry about being wrong, say what ever is on your mind it's ok
anonymous
  • anonymous
c
anonymous
  • anonymous
its b
anonymous
  • anonymous
i am not doing that
Astrophysics
  • Astrophysics
Yeah that's much better...haha divide both sides by 3
Astrophysics
  • Astrophysics
I've been up for 24+ hours so that's my queue xD
anonymous
  • anonymous
i did not delete your things
Astrophysics
  • Astrophysics
I know I did
anonymous
  • anonymous
ok
ganeshie8
  • ganeshie8
hey just one moment
Astrophysics
  • Astrophysics
Let me do the algebra quickly to...
ganeshie8
  • ganeshie8
4 is correct, but may i know this : when you said below, what were you thinking ? |dw:1440084673397:dw|
Astrophysics
  • Astrophysics
3y=12-2x y=(12-2x)/3 y= -2x/3+4 works out
anonymous
  • anonymous
me or him
Astrophysics
  • Astrophysics
\(\color{blue}{\text{Originally Posted by}}\) @ltj1234 u have 10 1 y left \(\color{blue}{\text{End of Quote}}\) Ganeshie is asking you what you meant by your comment here
anonymous
  • anonymous
o ok
ganeshie8
  • ganeshie8
yes you @ltj1234
anonymous
  • anonymous
idk
Astrophysics
  • Astrophysics
The 10 I think you were trying to subtract 2x from 12, but you can't do that since there is a variable (x)
ganeshie8
  • ganeshie8
sure you know it ^
ganeshie8
  • ganeshie8
when you have `12 - 2x`, you leave it like that you can't say that equals `10` because they are not "like terms" nevertheless, it was really a very good attempt from your side! keep it up!
anonymous
  • anonymous
ok
Astrophysics
  • Astrophysics
For sure, good job @ltj1234
anonymous
  • anonymous
thanks

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