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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?

  • one year ago
  • one year ago

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

    • one year ago
  2. lstrasmann Group Title
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    then solve for y

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

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

    • one year 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.

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

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

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

    • one year 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

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

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

    • one year 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

    • one year 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.

    • one year 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

    • one year ago
  15. Stormegeddon Group Title
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    your welcome

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

    • one year 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.

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

    • one year ago
  19. Stormegeddon Group Title
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    yes

    • one year ago
  20. EmmaH Group Title
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    ok thanks peoples!

    • one year ago
  21. kymber Group Title
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    Yes. \(\Large\ddot\smile\)

    • one year 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

    • one year ago
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