Ch. 4

Question 0

Discrete graph

Answer 0

Distinct points

Question 1

Continuous graph

Answer 1

Connected lines or curves

Question 2

Relations

Answer 2

Set of ordered pairs

Question 3

Domain

Answer 3

The set of first coordinates or X values of the ordered pairs

Question 4

Range

Answer 4

The set of second coordinates or Y values of the ordered pairs

Question 5

Function

Answer 5

A special type of relation that pairs each domain with exactly one range value

Question 6

Independent variable

Answer 6

Input of a function

Question 7

Dependent variable

Answer 7

Output of a function

Question 8

Function rule

Answer 8

An algebraic expression that defines a function

Question 9

Function notation

Answer 9

If x is the independent variable and y is the Dependent variable then y equals f(x)

Question 10

Scatter plot

Answer 10

A graph with points plotted to show a possible relationship between two sets of data

Question 11

Correlation

Answer 11

Describes a relationship between two data sets

Question 12

Positive correlation

Answer 12

Both sets of data values increase

Question 13

Negative correlation

Answer 13

One set of data values increases as the other set decreases

Question 14

No correlation

Answer 14

There is no relationship between the data sets

Question 15

Trend line

Answer 15

Helps show low correlation between data sets more clearly

Question 16

Sequence

Answer 16

A list of numbers that often forms a pattern

Question 17

Term

Answer 17

Each number in a sequence

Question 18

Arithmetic sequence

Answer 18

When the terms of a sequence differ by the same nonzero number

Question 19

Common difference

Answer 19

The difference between each number in an arithmetic sequence