Lesson 5 of 20 · about 17 min

Product, quotient and chain rules

Splash Park's revenue is price times visitors, and both change when the price changes. A rider's speed depends on how far they've fallen, which depends on time. To differentiate products and functions inside functions you need three more rules. You'll see the product rule as a growing rectangle and the chain rule as a relay of nudges, then use them to see which way a price change pushes the park's takings.