MAT 112 Study Guide - Final Guide: Commutative Property, Quadratic Equation, Associative Property
MAT 112 Final Exam Fall2007
December 12, 2007
Instructi ons:
Do not open this booklet until you are told to do so. Show all
work required to solve the problems. Incorrect answers not
supported by work will receive no partial credit. You may use
a calculator on any part
of
the exam, but you may not share a
calculator with another student.
If
you have any questions, ask
one
of
the proctors.
Printed name:
______________
_
Signature:
_____________
_
Part:
I
Points Possible
40
Points Earned:
II
30
III
30
TOTAL
100
PART I
1.
a.
(3
pts) State the commutative property and illustrate with an example.
b.
(3
pts) Simplify the following expression (show all your work):
-7x+8(x-2y)+6y
c.
(4 pts) Simplify (show your work):
2.
Consider the table to the right:
a.
(2 pts) Is this function linear?
x
X=f(x)
0 10
2 6
4-
2
6 -2
8 -6
b.
(2 pts) What is the value f(6)?
c.
(2 pts) For what values
of
x
is
f(x) < 2?
d.
(4 pts) Find an equation of this function?
Document Summary
Do not open this booklet until you are told to do so. Show all work required to solve the problems. Incorrect answers not supported by work will receive no partial credit. You may use a calculator on any part of the exam, but you may not share a calculator with another student. If you have any questions, ask one of the proctors. Part i: a. (3 pts) state the commutative property and illustrate with an example. (3 pts) simplify the following expression (show all your work): Part ii: solve for x, (2 pts) 3x + 11= 2x - 9: (2 pts) lo-13x <49, (3 pts) Part iii: a 750-seat theater charges . 00 for adult admission and . 00 for children. 4x - 12y =-8: simplify the following (leave as a fraction), (2 pts) 3x 9: (2 pts, (3 pts, (3 pts) f49. "m: write true or false for the following, (2 pts) j;.
