193k views
4 votes
How can i write 3 to "-1" and 2 to 1 , 1 to 3 , 5 to 0 and 7 to "-1" as an equation function

1 Answer

1 vote

If you're just building a function, there's nothing stopping from simplify defining it as a function f : {1, 2, 3, 5, 7} -> {-1, 0, 1, 3} such that


f(x)=\begin{cases}3&\text{if }x=1\\1&\text{if }x=2\\-1&\text{if }x=3\text{ or }x=7\\0&\text{if }x=5\end{cases}

In case it's not familiar to you, the notation f : A -> B simply means f is a function that maps elements in the set A to a single element in the set B ; I emphasize "single", because otherwise f would not be a function.

User Srikanth Jeeva
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories