Download CH2 Algebra

ID: A
CH2 Algebra
Multiple Choice
Identify the choice that best completes the statement or answers the question.
Simplify the expression.
1. -9
+6
a.
15
2. -4.8 - (-4.9) + 5.7
a.
-4
3.
1
_---
2
8
7
1
5
a.
4.
-6.5(-4.9)
a.
-16.25
5. (_2)5
-32
a.
b.
-3
c.
-15
d.
3
b.
-5.8
c.
5.8
d.
-15.4
b.
23
56
c.
23
56
d.
b.
-31.85
c.
-12.25
d.
31.85
b.
16
c.
-10
d.
32
b.
125
c.
-625
d.
625
b.
-72
c.
72
d.
-36
c.
d.
-6m + 76
-6m + 19
c.
5- c
d.
-5 - c
c.
-4
d.
-8
c.
10
d.
-18
1
8
6. _54
a.
7.
(-9)(-8)
(-2)
a.
8.
20
36
1
l(-12m
a.
b.
+ 38)
-6m + 38
-24m + 19
9. (-5 - c)(-l)
a.
-5 + c
10. Evaluate
a.
4
11. Evaluate
a. 24
l-x -
b.
I
2y for x
5
= -2
b.
+c
and y
= 3.
8
b - 2a - c for a = -7, b
b. 3
=
3, and c
=
-7.
12. The closing price of a share of stock in Company XYZ is $25.69 on Thursday. If the change from the closing price
on Wednesday is -$0.75, find the closing price on Wednesday.
a. $26.44
b. $24.94
c. $25.75
d. $25.06
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ID: A
13.
14.
Evaluatex(-y+z)forx=3,y=3,andz=1.
a.
-6
b. IOc.
The expression
-S'Sl
d.
12
1;00 )can be used to calculate
-8
the change in temperature
in degrees Fahrenheit
for an
increase in altitude a, measured in feet. A plane starts on the ground and then rises 23,000 ft. Find the change in
temperature at the altitude of the plane.
a.
126.5 degrees
c. -125 degrees
b. -126.5 degrees
d. 125 degrees
15. The procluct of two negative numbers
a.
16.
24
b.
If a is a negative
a.
18.
b.
c.
never
-12+(-2)
a.
17.
always
is __
positive.
sometimes
c.
then a
number,
always
l;)
b.
1
Evaluate
a.
-6
for
is __
-24
d.
6
equal to -1.
sometimes
c.
never
a = -6 ancl b = -2.
b.
12
3
c.
4
3
d,
-12
cl.
-2(q - 3)
d.
18z
Write an algebraic expression for the phrase.
19.
-2 times the quantity
a.
-2q - 3
20. -10z-28z
a. 38z
q minus 3
b.
q(-2-3)
c.
b.
-38z
c.
-2
q-3
18
Narne the property the equation illustrates.
21.
-2.1
a.
b.
c.
cl.
22.
O+ x
a.
b.
c.
cl.
x 1 = -2.1
Inverse Property of Multiplication
Multiplication
Property of-1
Identity Property of Aclclition
Identity Property of Multiplication
=
x
Iclentity Property of Addition
Multiplication
Property of O
Commutative Property of Aclclition
Inverse Property of Multiplication
2
ID: A
23.
24.
8x
"8l = 1
a.
b.
c.
d.
Identity Property of Division
Inverse Property of Addition
Inverse Property of Multiplication
Multiplication Property of-l
+ (-8.2)
8.2
a.
b.
c.
d.
=O
Inverse Property of Addition
Addition Property of O
Identity Property of Addition
Inverse Property of Multiplication
25.
8+3.4=3.4+8
a. Inverse Property of Addition
b. Associative Property of Addition
c. Commutative Property of Addition
d. Inverse Property of Multiplication
26.
7+
a.
b.
c.
d.
27.
2(
a.
b.
c.
d.
(4 + 4) = (7 + 4) + 4
Inverse Property of Addition
Associative Property of Addition
Commutative Property of Multiplication
Commutative Property of Addition
-% ) ~ (-% )2
Associative Property of Addition
Commutative Property of Multiplication
Inverse Property of Multiplication
Commutative Property of Addition
28.
(ab)3 = a(b3)
a. Inverse Property of Multiplication
b. Associative Property of Addition
c. Associative Property of Multiplication
d. Commutative Property of Multiplication
29.
Write the number 2.4 in the form
4
a.
30.
Write
-i-, ~, -%
l
a.
b.
10
5
b
using integers, to show thai it is a rational number.
24
100
c.
24
10
d.
4
11
in order from least to greatest.
5
-6' -6' 3
!!:_,
1 5
b.
-6' 3'
5
6
c.
-551--
3'
3
6'
6
d.
5
l
5
-6'-6' "3
------------------------.
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ID: A
Write a function rule for the table.
31.
Days
Cost to Rent a
Truck
34
56
78
100
1
2
3
4
a,
b,
32,
22d + 12
c==12d+22
c ==
22d + 22
c == 22d
c ==
c,
d,
a. Simplify the following expressions,
(-1)
1,
(-1)
2,
(-1)
3,
(-1) 4, (-1)
5
b. What is the sign of the final answer when the exponent is odd? When the exponent is even?
c. Use your answer from part (b) to simplify (-1)
33, Justify each step,
a, 7 + 2(x - 3) + 5x
19,
== 7 + 2x - 6 + 5x
b,
== 7 + 2x + (-6) + 5x
c,
== 7 + (-6) + 2x + 5x
d,
== 7 + (-6) + (2 + 5)x
e,
==7+(-6)+7x
f.
== 1 + 7x
g,
== 7x + 1
4