Where is a Function Increasing vs Decreasing?

We find the intervals over which f(x) increases and decreases by using the first derivative test. The function increases when its first derivative is positive, and the function decreases when its first derivative is negative. Download our app, AT Now to ask two free questions: https://itunes.apple.com/us/app/at-now-live-math-tutoring/id1142239871?ls=1&mt=8 Email us questions at [email protected] Check out our site at www.arnoldtutoring.com