In the graph _ is a function of _. Please help

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Taking algebra two apex courses and need with these questions

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label