What Is the slope of the line on the graph?

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?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585