# Math Help - f(-1) = 1

1. ## 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

2. Originally Posted by Destroyer0203
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)

3. wow so thats it? problem 2 is f(2) = 7 so would that be f(a) = b <=> (a,b)
(2,7)?

4. Originally Posted by Destroyer0203
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.

5. Originally Posted by undefined
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