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ESSENTIAL CALCULUS CH02 Derivatives. In this Chapter:. 2.1 Derivatives and Rates of Change 2.2 The Derivative as a Function 2.3 Basic Differentiation Formulas 2.4 The Product and Quotient Rules 2.5 The Chain Rule 2.6 Implicit Differentiation 2.7 Related Rates
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In this Chapter: • 2.1 Derivatives and Rates of Change • 2.2 The Derivative as a Function • 2.3 Basic Differentiation Formulas • 2.4 The Product and Quotient Rules • 2.5 The Chain Rule • 2.6 Implicit Differentiation • 2.7 Related Rates • 2.8 Linear Approximations and Differentials Review
1 DEFINITION The tangent line to the curve y=f(x) at the point P(a, f(a)) is the line through P with slope m=line Provided that this limit exists. X→ a Chapter 2, 2.1, P75
4 DEFINITION The derivative of a function f at a number a, denoted by f’(a), is f’(a)=lim if this limit exists. h→ 0 Chapter 2, 2.1, P77
f’(a) =lim x→ a Chapter 2, 2.1, P78
The tangent line to y=f(X) at (a, f(a)) is the line through (a, f(a)) whose slope is equal to f’(a), the derivative of f at a. Chapter 2, 2.1, P78
6. Instantaneous rate of change=lim ∆X→0 X2→x1 Chapter 2, 2.1, P79
The derivative f’(a) is the instantaneous rate of change of y=f(X) with respect to x when x=a. Chapter 2, 2.1, P79
9. The graph shows the position function of a car. Use the shape of the graph to explain your answers to the following questions • What was the initial velocity of the car? • Was the car going faster at B or at C? • Was the car slowing down or speeding up at A, B, and C? • What happened between D and E? Chapter 2, 2.1, P81
10. Shown are graphs of the position functions of two runners, A and B, who run a 100-m race and finish in a tie. (a) Describe and compare how the runners the race. (b) At what time is the distance between the runners the greatest? (c) At what time do they have the same velocity? Chapter 2, 2.1, P81
15. For the function g whose graph is given, arrange the following numbers in increasing order and explain your reasoning. 0 g’(-2) g’(0) g’(2) g’(4) Chapter 2, 2.1, P81
the derivative of a function f at a fixed number a: f’(a)=lim h→ 0 Chapter 2, 2.2, P83
f’(x)=lim h→ 0 Chapter 2, 2.2, P83
3 DEFINITION A function f is differentiable a if f’(a) exists. It is differentiable on an open interval (a,b) [ or (a,∞) or (-∞ ,a) or (- ∞, ∞)] if it is differentiable at every number in the interval. Chapter 2, 2.2, P87
4 THEOREM If f is differentiable at a, then f is continuous at a . Chapter 2, 2.2, P88
(a) f’(-3) (b) f’(-2) (c) f’(-1) • (d) f’(0) (e) f’(1) (f) f’(2) • (g) f’(3) Chapter 2, 2.2, P91
2. (a) f’(0) (b) f’(1) (c) f’’(2) (d) f’(3) (e) f’(4) (f) f’(5) Chapter 2, 2.2, P91
33. The figure shows the graphs of f, f’, and f”. Identify each curve, and explain your choices. Chapter 2, 2.2, P93
34. The figure shows graphs of f, f’, f”, and f”’. Identify each curve, and explain your choices. Chapter 2, 2.2, P93