Welcome to application of derivatives! This is the first part in learning how to curve sketch! We will be looking at cases where f(x) is increasing (if f'(x) is +) or decreasing (if f'(x) is -) on a number line. Increasing and Decreasing Functions (cr: Organic Chemistry Tutor) Finding increasing interval given the derivative (cr: Khan … Continue reading 4.1- Increasing and Decreasing Functions