Question

Show work how you know it’s a function or not a function for each problem. PLEASE SOMEONE HELP ME OUT

Answer 1

Answer: Function, not a function, Function, not a function

Explanation:

For it to be a function, each value of x has to map onto one value of y.

1. This is a function.
2. Not a function since x=-1 has more than one y value.
3. This is a function
4. Not a function since x=-6 has more than one y value.