Can someone me help asappp

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

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?