도함수의 활용 – 함수의 그래프 (1) / 그래프 연습만 하면 극대극소, 증가감소 모두 해결할 수 있어요

Hello~ This is math instructor Hye-gi. If you've completed the mean value theorem, the next thing you'll learn is, "Increase and Decrease of Functions." But before that, you absolutely must study "Function Graphs." This is because the later chapters—"Maximums and Minima of Functions," "Maximums and Minimums," "Applications to Equations," and "Applications to Inequalities"—are all about drawing function graphs. In other words, if you can accurately draw function graphs, you can master everything in one go! Let's get started!