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Pre-Algebra Chapter
Pre-Algebra Chapter
50 terms
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Questions
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Answers
1
Write an equation to find the number of apples needed for any number of horses.
3 ⋅ 1 = 3
h = 3a
3 ⋅ 1
a = 3h
2
a combination of numbers and operations; does NOT contain an equals sign
order of operations
algebra
evaluate
numerical expression
3
Find the total cost of 2 pkgs of pencils, 6 packs of paper, and 1 ruler.
23
6
9
$23
4
Name the property shown by the statement (
a
+
b
) +
c
=
a
+ (
b
+
c
)
Multiplicative Property of Zero
Commutative Property of Addition
Multiplicative Identity Property
Associative Property of Addition
5
In the coordinate system shown, which ordered pair does NOT correspond to a point on the graph?
(6 , 6)
(3 , 6)
(6 , 2)
(5 , 4)
6
What is the algebraic expression for "
the quotient of the number of points and three?"
n ⋅ 3
n + 3
3n
n ÷ 3
7
Name the property shown by the statement 1 + 2 + 3 = 2 + 1 + 3
Multiplicative Property of Zero
Associative Property of Addition
Multiplicative Identity Property
Commutative Property of Addition
8
an expression that contains at least one variable and at least one mathematical operation
defining a variable
properties
algebraic expression
variable
9
Simplify the expression (19 +
p
) + 15
34 - p
p + 4
34 + p
p - 4
10
the point at which the number lines intersect in a coordinate system
coordinate plane
origin
y-axis
x-axis
11
an example that shows something is not true
simplify
deductive reasoning
coordinate system
counterexample
12
Write the expression for: total # of students if there are 19 in one class and 13 in another.
19 + 13
32
6
19 + 13 = 32
13
to find the numerical value of an expression (to find the answer)
order of operations
numerical expression
evaluate
algebra
14
Evaluate the expression 6(7) + 3
39
42
45
16
15
the operation performed on the input of a function
scatter plot
function rule
equation
function table
16
another name for the coordinate system
coordinate plane
y-axis
origin
x-axis
17
a branch of mathematics that uses symbols
algebra
order of operations
evaluate
numerical expression
18
Write the expression for the total number of postcards if eight people each buy five.
8(5)
40
8(5) = 40
13
19
the set of all x-coordinates in a relation
relation
domain
range
function
20
the rules to follow when more than one operation is used in an expression (PEMDAS)
order of operations
algebra
numerical expression
evaluate
21
horizontal number line which helps to form the coordinate system
x-axis
coordinate plane
origin
y-axis
22
Evaluate the expression 4[(12 - 4) + 2]
32
40
16
14
23
Write an expression for the total cost of 2 pkgs of pencils, 6 packs of paper, and 1 ruler.
(2 + 3 + 1)
(2⋅3) + (6⋅2) + (1⋅1)
(2⋅2) + (6⋅3) + (1⋅1)
(2) + (6) + (1)
24
pair of numbers used to locate any point on a coordinate plane; (x-coordinate, y-coordinate)
y-coordinate
ordered pair
x-coordinate
graph
25
a collection of points graphed as ordered pairs showing the relationship between a set of data
equation
function table
function rule
scatter plot
26
Name the property shown by the statement 14 ⋅ 1 = 14
Commutative Property of Addition
Multiplicative Identity Property
Multiplicative Property of Zero
Associative Property of Addition
27
Name the property shown by the statement 12 ▪ 0 = 0
Associative Property of Addition
Multiplicative Identity Property
Commutative Property of Addition
Multiplicative Property of Zero
28
a set of ordered pairs which may be shown in a table, graph, or listing of ordered pairs
domain
relation
function
range
29
statements that are true for any numbers
properties
variable
algebraic expression
defining a variable
30
a table organizing the input, rule, and output of a function
equation
function table
function rule
scatter plot
31
What is the value of
x
– 5 + 2
y
if
x
= 6 and
y
= 4?
6
7
9
3
32
a relation in which each element of the domain is paired with exactly one element in the range
domain
function
range
relation
33
Simplify the expression (4 +
x
) + 6
x - 10
x + 10
x + 2
x - 2
34
a mathematical sentence stating that two quantities are equal; must contain an equals sign (=)
function rule
equation
scatter plot
function table
35
a dot at the point that corresponds to an ordered pair on a coordinate plane
ordered pair
graph
y-coordinate
x-coordinate
36
Simplify the expression (5 +
v
) + 7
v + 12
v + 2
v - 12
v - 2
37
the second number in an ordered pair which corresponds to the number on the y-axis
ordered pair
y-coordinate
x-coordinate
graph
38
Evaluate the expression 23 – 15 ÷ 3 ▪ 2
9
11
12
13
39
vertical number line which helps to form the coordinate system
y-axis
x-axis
origin
coordinate plane
40
The scatter plot shows weight and height. What type of relationship does the scatter plot show?
positive
negative
no relationship
41
choosing a variable and a quantity for the variable to represent
defining a variable
algebraic expression
properties
variable
42
Simplify the expression 3 ▪ (2 ▪ x)
6 ÷ x
6+x
6x
6-x
43
formed by the intersection of two number lines that meet at right angles at their zero points
coordinate system
deductive reasoning
simplify
counterexample
44
Lions scored
t
regular shots,
e
3-pointers, and
f
free throws. Write the algebraic expression.
2 + 3 + f
6
2t + 3e + f
p = 2 + 3 + 1
45
to write an expression in simpler form by performing all possible operations
simplify
counterexample
coordinate system
deductive reasoning
46
process of using facts, properties, or rules to justify reasoning or reach valid conclusions
counterexample
coordinate system
deductive reasoning
simplify
47
the first number in an ordered pair which corresponds to the number on the x-axis
graph
ordered pair
y-coordinate
x-coordinate
48
a letter or symbol used to represent an unknown value
variable
algebraic expression
properties
defining a variable
49
Evaluate 3
a
+
b
–
c
if
a
= 4,
b
= 8 and
c
= 11.
1
6
9
3
50
the set of all y-coordinates in a relation
function
domain
relation
range
