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Math Help - Quadratic Formula

  1. #1
    Junior Member
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    Quadratic Formula

    (a) Use the quadratic formula to solve the distance formula
    for in terms of the other quantities. (The quadratic formula gives you two solutions, enter the larger one first.)
    (b) Substitute and into the above formula and find
    (c) Now check your answer to (a) is correct by plugging in the values for and from (b) and seeing if your formula gives
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by lilikoipssn View Post
    (a) Use the quadratic formula to solve the distance formula
    for in terms of the other quantities. (The quadratic formula gives you two solutions, enter the larger one first.)
    (b) Substitute and into the above formula and find
    (c) Now check your answer to (a) is correct by plugging in the values for and from (b) and seeing if your formula gives
    the quadratic formula says, the solutions in x to the quadratic equation ax^2 + bx + c = 0 are given by:

    x = \frac {-b \pm \sqrt{b^2 - 4ac}}{2a}


    you want to solve: \frac 12at^2 + ut - s = 0 for t. just follow the formula
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  3. #3
    MHF Contributor Mathstud28's Avatar
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    Pennsylvania
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    Ok

    Quote Originally Posted by lilikoipssn View Post
    (a) Use the quadratic formula to solve the distance formula







    for in terms of the other quantities. (The quadratic formula gives you two solutions, enter the larger one first.)
    (b) Substitute and into the above formula and find
    (c) Now check your answer to (a) is correct by plugging in the values for and from (b) and seeing if your formula gives
    Applying the quadratic formula we get t=\frac{-u\pm\sqrt{u^2-4\cdot{\frac{1}{2}a}\cdot{-s}}}{2\cdot{\frac{1}{2}a}}
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