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Math Help - f(-1) = 1

  1. #1
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    f(-1) = 1

    i just entered algebra and i am faced with this problem "Translate the following statements into coordiante points, then plot them!" (i think the explanation mark is too enthusiastic) anyways i have no clue what to do. help me! oh yeah f(-1) = 1
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  2. #2
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    Quote Originally Posted by Destroyer0203 View Post
    i just entered algebra and i am faced with this problem "Translate the following statements into coordiante points, then plot them!" (i think the explanation mark is too enthusiastic) anyways i have no clue what to do. help me! oh yeah f(-1) = 1
    (-1, 1).

    f(a) = b <=> (a, b)
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  3. #3
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    wow so thats it? problem 2 is f(2) = 7 so would that be f(a) = b <=> (a,b)
    (2,7)?
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  4. #4
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    Quote Originally Posted by Destroyer0203 View Post
    wow so thats it? problem 2 is f(2) = 7 so would that be f(a) = b <=> (a,b)
    (2,7)?
    Yep, that's all there is to it.
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  5. #5
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    Quote Originally Posted by undefined View Post
    Yep, that's all there is to it.

    Of course, what this means exactly is that the point (a,b) in the plane belongs to the graph of the function f iff f(a)=b .

    Tonio
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