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Math Help - suppose f,g and h are functions defined

  1. #1
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    Post suppose f,g and h are functions defined

    Suppose f,g and h are functions defined by

    F(x) = 1 , g (x) 3 and h(x) = (x+1) (x-2) .
    2x - 3 x + 4 x+1


    which one of the following ststements is/are true?

    • Df = { x e R : x not equl to 3/2 }
    • Dg = { x e R : x > -4 }
    • Dh = R
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  2. #2
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    Quote Originally Posted by Alexander View Post
    Suppose f,g and h are functions defined by

    F(x) = 1 , g (x) 3 and h(x) = (x+1) (x-2) .
    2x - 3 x + 4 x+1


    which one of the following ststements is/are true?

    • Df = { x e R : x not equl to 3/2 }
    • Dg = { x e R : x > -4 }
    • Dh = R

    1)True

    2)No it has to be x>-4.

    3)No x\not = -1
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