Exam I
MAT 112
Spring 2014
Name:
Directions: Show all work neatly, writing nal answers in the provided boxes. Round all dollar amounts to two
decimal places, and all other approximations to four decimal places.
7 points
1. Write the slope-intercept form o
Review for Exam II Answers
MAT 112
Spring 2014
1. Solve the following system of linear equations. Give a parameterization of the solutions if there are an innite
number of solutions.
x + 3y =
1
x = 5 and y = 2
5x 10y = 45
2. Solve the following system of
Exam III Answers
MAT 112
Spring 2014
Name:
Directions: Show all work neatly, writing nal answers in the provided boxes. Round all dollar amounts to two
decimal places, and all other approximations to four decimal places.
6 points
1. Refer to the Venn diag
Review for Exam I Answers
MAT 112
Spring 2014
1. Find the slope of the line that passes through the points (5, 6) and (2, 3).
m=
3(6)
25
=
9
7
2. Find the slope-intercept form of the equation of the line with slope 3 that passes through the point (2, 1).
Review for Exam III
MAT 112
Spring 2014
1. Find each number using the following Venn diagram.
A
U
13
23
a) n(A) = 36
d) n(B ) = 24
e) n(A B) = 23
8
b) n(B) = 31
c) n(A ) = 19
B
f) n(A B) = 44
g) n(U) = 55
11
2. Of the 500 incoming freshmen at a college, 1
Exam II
MAT 112
Spring 2014
Name:
Directions: Show all work neatly, writing nal answers in the provided boxes. Round all dollar amounts to two
decimal places, and all other approximations to four decimal places.
10 points
1. Solve the following system of
Quiz 4
MAT 112
February 10, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Evaluate log2 23 exactly without a calculator.
log2 23 =
2. A loan of $7, 260 was repaid at the end of 8 mo
Quiz 1
MAT 112
January 17, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Solve 10x + 25(x 3) = 275.
x=
2. Solve
x 1 1
+ = .
4 2 8
x=
3. Solve 2x + 3 < 4. Give the answer in interval
Quiz 7
MAT 112
April 2, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. A particular new car model is available with 5 choices of color, 3 choices of transmission, 4 types of interior
Quiz 6
MAT 112
March 26, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Perform the indicated set operation.
a) cfw_1, 2, 3 cfw_2, 3, 4 =
c) cfw_1, 4, 7 cfw_10, 13 =
b) cfw_1, 2, 3 c
Quiz 5
MAT 112
February 26, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Solve the following system of linear equations using any method.
3x y = 2
x + 2y = 10
x=
y=
2. How many sol
Quiz 3
MAT 112
January 31, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Find the vertex and x-intercepts of the quadratic function f (x) = 4x2 + 16x 15.
Vertex:
x-intercepts:
and
2
Quiz 2
MAT 112
January 24, 2014
Name:
Directions: Show all work. Please be as neat as possible. Please write the answers in the provided boxes.
1. Find the slope-intercept form (y = mx + b) of the equation of the line through the point (4, 5) with slope
m