Expressions
30 minus a number
30 - n
Give an example of an integer.
Example could be... -2, 0, 4
A function has one...
input for every output
A (coordinate plane, scatter plot) is a graph that relates data from two different sets.
scatter plot
Find the range of:
24, 45, 33, 27, 24
21
The sum of 5 and three times a number
What is 5+3n
Give an example of an irrational number.
pi, square root of two
Identify the independent and dependent variables:
Tom has $8.00. He wants to buy oranges which cost $.75 a piece.
Independent: money spent
Dependent: oranges bought
a positive correlation means...
both sets of data increase together
Find the mode of:
42, 18, 55, 37, 57, 37, 48, 47, 37
37
Using a=3, b=2, and c=1. Evaluate:
9(a + 2b) + c
64
Name most specific set in which 35/5 belongs to.
Natural
Identify the Domain and Range:
Anna earns $6.50 an hour at her job. She can work up to 18 hours a week.
Domain: 0 to 18 hours
Range: $0 to $117
A negative correlation means...
one set of data decreases when the other increases.
What is the median of:
85, 87, 81, 92, 87, 80, 83
85
Using a=3, b=2, and c=1. Evaluate:
(2a + b) / 2
4
Name the most specific set in which square root of seven belongs
Irrational
X Y
1 7
2 14
3 21
4 28
y=7x
No correlation means...
the data sets are not related
Find the mean of:
2.4, 2.3, 2.1, 2.5, 2.3, 2.2
2.3
Using a=3, b=2, and c=1. Evaluate:
4a - b2
8
The difference between natural and whole numbers is...
Whole numbers have the addition of a zero.
X Y
1 20
2 16
3 12
4 8
y=24-4x
This shows a correlation more clearly.
A trend line
Find the mean and median:
85, 87, 81, 92, 87, 80, 83
85, 85