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Math Help - misspelled?

  1. #1
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    misspelled?

    Me and my friends think my teacher think our teacher mispelled this problem because it makes no sense to us whatsoever.. here it is:
    Use parametric equations to simulate motion:
    S= -0.1(t^3 -20t^2 + 110t = 85) 0<(or equal to) t < (or equal to) 12
    Gary walks along a horizontal line and those are the coordinates of his position...
    to me, the = sign there makes absolutely no sense.. i think it could be a + but i still dont know how to solve it..
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  2. #2
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    Hello, ijleyton!

    I agree . . . the second "=" is probably a "+".


    Use parametric equations to simulate motion:

    . . S\;=\; -0.1(t^3 -20t^2 + 110t + 85),\;\;0 \leq t \leq 12

    Gary walks along a horizontal line and those are the coordinates of his position.
    You forgot to give us the question(s) . . .

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  3. #3
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    thats the question :-s: Simulate the motion.. i guess it means graph.. but even if its a + ... how would i do it ?
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  4. #4
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    Quote Originally Posted by ijleyton View Post
    thats the question :-s: Simulate the motion.. i guess it means graph.. but even if its a + ... how would i do it ?
    There is no simple way to graph this function. You'll have to use long arithmetic to graph the points between zero and twelve or use a calculator.
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