Help. Also, how do you give Brainliest?

Okay so basically when two people answer your questions it should give you the option to give brainliest otherwise sometimes it takes a few days to give it to someone. And for your question does it give any number options.?

Edit: f(-1)= 1 then f(1)= -10.

two people need to answer the question your asking and their is a crown beside the flag under both answers

Step-by-step explanation:

the answer is two. hope this !