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anonymous

  • 4 years ago

Say that your equation is y=4x-2y=6 how do you find the slope??

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  1. anonymous
    • 4 years ago
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    Are you sure there are two equal signs?

  2. anonymous
    • 4 years ago
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    No the =6 was on a different problem

  3. anonymous
    • 4 years ago
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    So, the equation is actually y=4x-2y?

  4. anonymous
    • 4 years ago
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    Yes

  5. anonymous
    • 4 years ago
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    Hello?

  6. anonymous
    • 4 years ago
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    Alright! So, slope-intercept form, a common way to see a line is: \[y=mx+b\] You have to solve the equation so it is in this form. y and x being coordinates, b being the y-intercept and m being the slope. We start by moving the -2y over to the side that already has a y. Now, you have \[3y=4x\]. Then, you divide the 3 from both sides and you should get \[y=4/3x\] Looking back at our slope intercept form, 4/3 is the slope and the y intercept is 0. Does that make sense?

  7. anonymous
    • 4 years ago
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    Yes thanks for the help can i ask you a few more questions?

  8. anonymous
    • 4 years ago
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    Of course. I will do my best.

  9. anonymous
    • 4 years ago
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    What does it mean when you derive slope from two coordinate pairs that are on a line?

  10. anonymous
    • 4 years ago
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    I would assume it is referring to the slope formula: \[y_{2}-y_{1} \div x _{2}-x_{1} = m\] Can you give me the pairs of coordinates? Or is it asking in general?

  11. anonymous
    • 4 years ago
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    Its asking in general...

  12. anonymous
    • 4 years ago
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    Okay. Well, that formula up there is how it is done. You see, two coordinates: \[(x_{1},x_{2})\] and \[(x_{2},y_{2})\] fit right into that formula!

  13. anonymous
    • 4 years ago
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    An example: (3,4) and (2,5) would have the slope: (5-4)/(2-3) = 1/-1 = -1.

  14. anonymous
    • 4 years ago
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    Ok thanks

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