Unformatted text preview: A(r) is what is called function notation. The name of the function. This is what the answer represents… in this case the A is for Area. What does A(2) mean? Any time there is a quantity other than the original variable inside the ( ) it is telling us to replace the variable in the formula by the new quantity. Therefore, here we would replace the r in the formula by 2 and get an answer. A(2) = π(2) 2 So we get that A(2) = 4π This is NOT multiplication. It is a notation that means that the variable in our formula is r....
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- Spring '10
- Formulas, Expression, Gottfried Leibniz, basically formulas