Need help figuring out where I am going wrong!

 

What notation do they use to indicate whether the endpoint is included in the range of values or not?

 

What notation do they use to indicate whether the endpoint is included in the range of values or not?

I figured it out, they wanted me to put negative infinite to 0 instead of listing out individual points. Thanks for the response

 

Glad to hear it is resolved. thank you for sharing it with us.