Social science: memory. In a certain memory experiment, a person is able to memorize m words after t minutes, where M = − 0.001 t 3 + 0.1 t 3 . a. a) Find the rate of change of the number of words memorized with respect to time. b. b) How many words are memorized during the first 10min (at t = 10 )? c. c) At what rate are words being memorized after 10min (at t = 10 )?
Social science: memory. In a certain memory experiment, a person is able to memorize m words after t minutes, where M = − 0.001 t 3 + 0.1 t 3 . a. a) Find the rate of change of the number of words memorized with respect to time. b. b) How many words are memorized during the first 10min (at t = 10 )? c. c) At what rate are words being memorized after 10min (at t = 10 )?
Consider the function f(x) = x²-1.
(a) Find the instantaneous rate of change of f(x) at x=1 using the definition of the derivative.
Show all your steps clearly.
(b) Sketch the graph of f(x) around x = 1. Draw the secant line passing through the points on the
graph where x 1 and x->
1+h (for a small positive value of h, illustrate conceptually). Then,
draw the tangent line to the graph at x=1. Explain how the slope of the tangent line relates to the
value you found in part (a).
(c) In a few sentences, explain what the instantaneous rate of change of f(x) at x = 1 represents in
the context of the graph of f(x). How does the rate of change of this function vary at different
points?
1. The graph of ƒ is given. Use the graph to evaluate each of the following values. If a value does not exist,
state that fact.
и
(a) f'(-5)
(b) f'(-3)
(c) f'(0)
(d) f'(5)
2. Find an equation of the tangent line to the graph of y = g(x) at x = 5 if g(5) = −3 and g'(5)
=
4.
-
3. If an equation of the tangent line to the graph of y = f(x) at the point where x 2 is y = 4x — 5, find ƒ(2)
and f'(2).
Does the series converge or diverge
Chapter 1 Solutions
Pearson eText Calculus and Its Applications, Brief Edition -- Instant Access (Pearson+)
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