Calculus 8th Edition Stewart Test Bank
Calculus 8th Edition Stewart Test Bank Full Download:
Stewart - Calculus 8e Chapter 2 Form A
1. Differentiate.
2. Find the limit.
3. Differentiate.
4. The graph shows the percentage of households in a certain city watching television during a 24-hr period on
a weekday ( corresponds to 6 a.m.). By computing the slope of the respective tangent line, estimate the rate of change of the percentage of households watching television at a-12 p.m. Note that
y (%)
0.225 0.15
0.075
3 dy
2 4 6 8 10 12 14 16 18 20 t (hr)
5. Suppose the total cost in maunufacturing x units of a certain product is C (x) dollars.
a. What does
measure? Give units.
b. What can you say about the sign of ?
c. Given that
, estimate the additional cost in producing the 3001st unit of the
product.
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Stewart - Calculus 8e Chapter 2 Form A
6. The level of nitrogen dioxide present on a certain June day in downtown Megapolis is approximated by
where A(t) is measured in pollutant standard index and t is measured in hours with corresponding to 7 a.m. What is the average level of nitrogen dioxide in the atmosphere from 1 a.m. to 2 p.m. on that day? Round to three decimal places.
7. Sketch the graph of the derivative
y
6 5 4 3 2 1
of the function f whose graph is given.
?5 ?4 ?3 ?2 ?1
12345 x
8. Let
.
a. Sketch the graph of f. b. For what values of x is f differentiable? c. Find a formula for .
9. Suppose that f and g are functions that are differentiable at x = 1 and that f (1) = 1, (1) = ?3, g (1) = 2, and (1) = 5. Find .
10. Find the derivative of the function.
11. Identify the "inside function" u = f (x) and the "outside function" y = g (u). Then find dy/dx using the Chain Rule.
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Stewart - Calculus 8e Chapter 2 Form A
12. Find the derivative of the function. f (x) = x sin8 x
13. Find an equation of the tangent line to the given curve at the indicated point.
y 4
2
?1 ?2 ?4
1
x
14. The curve with the equation to the curve at the point (48 6 , 1).
y
125
is called an asteroid. Find an equation of the tangent
?125
0
?125
125 x
? 2016 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
Stewart - Calculus 8e Chapter 2 Form A
15. Two curves are said to be orthogonal if their tangent lines are perpendicular at each point of intersection of the curves. Show that the curves of the given equations are orthogonal.
y ?
7 4
x
=
x =
7 4
cos y
y 3 2 1
?3 ?2 ?1 ?1 ?2 ?3
1 2 3x
16. s(t) is the position of a body moving along a coordinate line; s(t) is measured in feet and t in seconds, where . Find the position, velocity, and speed of the body at the indicated time.
;
t = 3
17. In calm waters, the oil spilling from the ruptured hull of a grounded tanker spreads in all
directions. Assuming that the polluted area is circular, determine how fast the area is increasing
when the radius of the circle is 20 ft and is increasing at the rate of
1 6
ft/sec.
Round to the nearest
tenth if necessary.
18. The volume of a right circular cone of radius r and height h is and height of the cone are changing with respect to time t.
. Suppose that the radius
a. Find a relationship between , , and .
b. At a certain instant of time, the radius and height of the cone are 12 in. and 13 in. and are increasing at the rate of 0.2 in./sec and 0.5 in./sec, respectively. How fast is the volume of the cone increasing?
19. In calm waters, the oil spilling from the ruptured hull of a grounded tanker spreads in all
directions. Assuming that the polluted area is circular, determine how fast the area is increasing
when the radius of the circle is 20 ft and is increasing at the rate of
1 6
ft/sec.
Round to the nearest
tenth if necessary.
? 2016 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
Stewart - Calculus 8e Chapter 2 Form A
20. The sides of a square baseball diamond are 90 ft long. When a player who is between the second and third base is 30 ft from second base and heading toward third base at a speed of 24 ft/sec, how fast is the distance between the player and home plate changing? Round to two decimal places.
Second base
x
Third base
D
90 ft
First base
Home p lat e
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