Proof to be written
Open answerShow, using the rate of change (f(b) - f(a)) / (b - a), that the function f(x) = -3x + 7 is decreasing on R. Give a full answer, including the calculation and the conclusion.
Show, using the rate of change (f(b) - f(a)) / (b - a), that the function f(x) = -3x + 7 is decreasing on R. Give a full answer, including the calculation and the conclusion.