Please I need help with this. My daughter and I are struggling with thjs for virtual. I nvr learned this! Needs answers plz?

A function takes one element (the input) from the domain set and maps it to exactly one element (the output) in the range set.

For example, suppose the domain is {1, 2, 3} and the range is {4, 5}.

This is a function:

{1  =>  4, 2  =>  4, 3  =>  5}

because for each input, there is only one output.

This is not a function:

{1  =>  4, 1  =>  5, 2  =>  4}

because 1 is mapped to more than one output.

From the 8 given relations, we have

functions: 1, 3, 4, 6, 7

not functions: 2, 5, 8

Relations 2, 5, and 8 are not functions because

• (2) 9 is mapped to both 6 and 8

• (5) 2 is mapped to both 0 and 8

• (8) 9 is mapped to both 2 and 7

For diagrams like this, the thing to look for is multiple line segments starting from one input in the domain set.

answer: the answer is fre sha voca do

step-by-step explanation: