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Math Help - Fuction Help!

  1. #1
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    Exclamation Fuction Help!

    f: R -> R, f (x) = ( x + 4 ) ( x^2 - 4x +13 )

    Find the Y intercept of the graph.

    Explain why there is no real solution to the equation f(x)=0

    Find the stationary points of y= f(x).
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by mibamars View Post
    f: R -> R, f (x) = ( x + 4 ) ( x^2 - 4x +13 )

    Find the Y intercept of the graph.
    just plug in x = 0 and solve

    Explain why there is no real solution to the equation f(x)=0
    this is not true, f(-4) = 0, -4 is a real number

    Find the stationary points of y= f(x).
    find f'(x) and set it equal to zero, use the product rule if you don't want to expand everything
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