What is f(-3) for the function f(x) = -5x - 7

What term best describes a line ans a point that lie in the same plane

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?