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Thread: 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 $\displaystyle (a,b)$ in the plane belongs to the graph of the function $\displaystyle f$ iff $\displaystyle f(a)=b$ .

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