Write an equation that represents the set of all points (x, y) on the coordinate plane that are 4 units away from the point (-1,2). Part B:
Explain how you determined your answer.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

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?

Which one is the correct answer, and why?