QUIZ 8
Name
1. Reserved seating at a certain concert at the Gorge Amphitheater in George, Washington, cost
$71.90 in September 2008. If admission fees for concerts are expected to increse by 17% per
y
EXAM 3
Math 105
April 30, 2013
Name
You must show all your work. Partial credit will be given.
1. For each of the following use the rules of logarithms to rewrite the expression as a single
logarithmi
EXAM 2
Math 105
March 14, 2013
Name
You must show all your work. Partial credit will be given.
1. Find the equation of the line that passes through the two points (1, 3) and (3, 5).
2. Consider the da
QUIZ 1
Name
1. Solve each of the following system of equations
2x - y=5
3x + 2y=4
y=0.25x+1
y=1.9x-2.1
y=2x+1.6
2. For the following matrix, state whether or not it is the desired nal form. If it is
QUIZ 2
Name
1. Solve the system of equations
2x - 3y=5
-4x + 6y=4
2. Write the system of equations given below as an augmented matrix, then reduce the matrix
to reduced form and write the solutin for
EXAM 1
Math 105
February 7, 2013
Name
You must show all your work. Partial credit will be given.
1. Solve each of the following systems of equations using any method you like. (9 pts each)
(a)
2x-3y=-
QUIZ 5
Name
1. Find the slope and y -intercept of the linear function f (x) = 3x + 1.
2. Find E (t) at t = 4, where E (t) is the quarterly earnings per share for an international tortilla
producer t q
QUIZ 6
Name
1. In 2013, the average retail price of a 2011 Toyota Land Cruiser 4-Wheel Drive was $46,650.
The average retail price of a 2007 Touyota Land Cruiser 4-Wheel Drive was $21,325. Find a
line
QUIZ 9
Name
1. A pack of cigarettes currently cost $5.85 each. The price of a pack of cigarettes is expected
to increase by 4% per year in the future. Find a mathematical model that describes the cost
QUIZ 7
Name
1. Find the equation of the line passing through the points (1, 4) and (5, 2).
2. Determine the concavity, y -intercept, and vertex for the quadratic function f (x) = 12x2 +
24x + 45.
3. D
QUIZ 4
Name
1. Graph the solution region for the following system.
3x+2y
x +3y
x
12
7
0
8
7
6
5
4
3
2
1
-5
-4
-3
-2
-1
1
-1
-2
-3
2
3
4
5
6
7
8
2. For each of the following matrices, state whether or
QUIZ 2
Name
1. Graph the solution region for the following system. Find the corner points of this region.
3x+5y
2x +9y
x
15
18
0
8
7
6
5
4
3
2
1
-5
-4
-3
-2
-1
1
-1
-2
-3
2
3
4
5
6
7
8
2. Graph the so