What is the equation of the line shown in the graph?

What is the reflection image of (5,-3) across the line y = -x?

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

Complete the steps to find 4.830 ÷ 5