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EmmaH Group Title

Write the slope-intercept form of the line which passes through (4, 2) with a slope of 1/2. how do i solve this?

  • 2 years ago
  • 2 years ago

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  1. lstrasmann Group Title
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    use point slope form.. \[y - y_{1} = m(x - x_{1})\]

    • 2 years ago
  2. lstrasmann Group Title
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    then solve for y

    • 2 years ago
  3. 03225186213 Group Title
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    use slope point slope form y-y1=m(x-x1) m is slope

    • 2 years ago
  4. EmmaH Group Title
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    wait its noym= y1-y/x-x1

    • 2 years ago
  5. kymber Group Title
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    Slope-intercept form is y = mx + b All you do is plug in the slope and the point given in the problem and then figure out the y-intercept. (b) m is the slope and x and y is the point given. (4, 2) (x, y) So plug these into the formula and solve for b. Once you find b, then you plug it back into the formula along with the slope and you're done.

    • 2 years ago
  6. EmmaH Group Title
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    2=m4+b?

    • 2 years ago
  7. kymber Group Title
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    Yes, but put in the slope as m. Then you can solve for b.

    • 2 years ago
  8. EmmaH Group Title
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    where does trthe1/2 go?

    • 2 years ago
  9. Stormegeddon Group Title
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    Slope Intercept form: y = mx + b y axis = 2 so *2 = mx + b* x axis is 4 so * 2 = m(4) + b m = slope sp *2 = 1/2(4) + b now multiply 1/2 * 4 to get 2 now we have 2 = 2 + b subtract 2 from each side b = 0

    • 2 years ago
  10. kymber Group Title
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    1/2 is the slope. Plug it in for m.

    • 2 years ago
  11. EmmaH Group Title
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    ok 2=1/2(4)+b anf i try to find b right?

    • 2 years ago
  12. Stormegeddon Group Title
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    1. 2 = 1/2(4) + b 2. 2 = 2 + b 3. subtract 2 from each side to get b = 0

    • 2 years ago
  13. kymber Group Title
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    Thanks for just giving her the answer, Storm. She was about to do it on her own.

    • 2 years ago
  14. EmmaH Group Title
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    the thing isthats nit one of the answers y = 1/2 x + 2 y = 1/2 x y = 1/2 x + 4

    • 2 years ago
  15. Stormegeddon Group Title
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    your welcome

    • 2 years ago
  16. kymber Group Title
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    Since b is 0, you just don't need to have it there.

    • 2 years ago
  17. kymber Group Title
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    So you plug the slope back into the original equation once your have b. But in this case, you just plug the slope into the equation and ignore b.

    • 2 years ago
  18. EmmaH Group Title
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    so its the second one?

    • 2 years ago
  19. Stormegeddon Group Title
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    yes

    • 2 years ago
  20. EmmaH Group Title
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    ok thanks peoples!

    • 2 years ago
  21. kymber Group Title
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    Yes. \(\Large\ddot\smile\)

    • 2 years ago
  22. 03225186213 Group Title
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    y-2=1/2(x-4) y-2=1/2x-2 add 2 on both sides y=1/2x here y intercept is 0

    • 2 years ago
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