4 c)
3
#3
B
True or false? To verify that a value is a local max or local min, the second derivative can be used to check concavity at that value.
True
#5 a)
tant-2/3t3/2+c
Find F'(t) for F(t)=
x-x3
#4 b)
2(2)1/2
Values of x at which the first derivative is equal to 0 or undefined are called the functions _____________?
Critical Numbers
True of false,
Steps to solving related rates problems:
Sketch a diagram
Identify the givens
Determine what you are trying to find
Identify correlating equation
Find derivative of equation and make substitutions for the known values.
Solve for unknown rate.
True
#5 b)
2-e+1/e
#11 a)
(1/x2)-1/2(-2x-3)
#4 a)
-1/x2
#6 c)
inc: (2, inf)
dec: (-inf, 1)(1, 2)
A 10-foot ladder leans against a wall. The base slides away at 2 ft/s. How fast is the top sliding down when the base is 6 ft from the wall?
The top is sliding down at 1.5 ft/s
#5 c)
3(5t-4)4/3/20 + C
Find F'(x)
-x3+4x2-7
#1
D
#10 a)
dy/dx = (-2x+4)/(2y-4)
#8
16(3)1/2/3
#7
8/3 units2
#2
D
#6 e)
no inflection
concave up: (1, inf)
Concave down: (-inf, 1)
#9
32pi cm2/min
#11 b)
1/21/2+1/31/2+1/41/2