College Algebra Spring 2009
Exam 3
Answer each question in the space provided. Each of the nine questions will count nearly the same.
Formulas for Questions 13:
Exponential growth, P(t) = Poekt
Expon
College Algebra
Spring 2008
Exam No. 3
Formulas
A. Exponential growth, P(t) = Poekt
B. Exponential decay, P(t) = Poekt
1. (a) In 2005, the world population was 6.4 billion, and the exponential growth
College Algebra Spring 2008
Exam 2
Answer each question in the space provided. Each of the six question categories will count nearly the same.
1. (a) Given that x = 4 is a zero of f(x) = x3  6x2 + 6x
College Algebra
Spring 2008
Quiz No. 3
1. (4 pts.)
(a) Write the function f ( x) = 2 x 2 + 12 x + 14 in standard form, i.e., as f ( x) = a ( x h) 2 + k .
f ( x ) = 2 x 2 + 12 x + 14
(
= 2( x
)
= 2 x 2
College Algebra
Spring 2009
Quiz No. 6
1. Circle the letter of each graph that shows a onetoone function.
y
y
x
x
B
A
y
y
x
x
C
D
2. Carefully sketch the graph of the inverse function for each funct
College Algebra
Spring 2009
Quiz No. 8
1. Skeletons were found at a construction site in San Francisco in 1989. The skeletons had lost 12% of
the amount of carbon14 that would be found in a living pe
Azusa Pacific University
Spring 2009
Quiz No. 11
The standard form of the equation of an ellipse discussed in Chapter 6 is:
( x h) 2 ( y k ) 2
( x h) 2 ( y k ) 2
1 or
1 , where a > b, and c a 2 b 2
College Algebra
Spring 2008
Exam No. 3
Formulas
A. Exponential growth, P(t) = Poekt
B. Exponential decay, P(t) = Poekt
1. (a) In 2005, the world population was 6.4 billion, and the exponential growth
College Algebra
Spring 2009
Quiz No. 5
1. Solve the polynomial inequality x3 + 3 < 3x2 + x. Express your final answer in interval notation
at the bottom where you see Solution set.
Related inequality:
College Algebra
Spring 2009
Quiz No. 7
1. Evaluate each of the following logarithms (calculators are not needed)
(a) log3 81 = 4
(b) log 0.10 = 1
(c) ln e4 = 4
(d) log16 1 = 0
2. To the right of each
College Algebra
Spring 2009
Quiz No. 7
1. Evaluate each of the following logarithms (calculators are not needed)
(a) log2 32 = 5
(b) log 0.01 = 2
(c) log8 1 = 0
(d) ln e5 = 5
2. To the right of each
College Algebra
Spring 2009
Quiz No. 9
1. Write the system of equations as an augmented matrix.
x
+
2y
+
z
=
6
2x

y

3z
=
7
3x
+
y

7z
=
18
2. Convert the augmented matrix to rowechelon form. As