Ch 4 vocab

Question 0

graphs with distinct points

Answer 0

discrete graphs

Question 1

graphs with connected lines or curves

Answer 1

continuous graphs

Question 2

set of ordered pairs that represent a relationship

Answer 2

relation

Question 3

set of first coordinates (or x-values) of the ordered pairs in a relationship

Answer 3

domain

Question 4

set of second coordinates (or y-values) of the ordered pair in a relationship

Answer 4

range

Question 5

a special type of relationship that pairs each domain value with exactly one range value

Answer 5

function

Question 6

input of a function

Answer 6

independent variable

Question 7

output of a function

Answer 7

dependent variable

Question 8

an algebraic expression that defines a function

Answer 8

function rule

Question 9

if x is the independent variable and y is the dependent variable, then ____________ for y is f(x) where f names the function

Answer 9

Function notation

Question 10

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

Answer 10

scatter plot

Question 11

describes a relationship between two sets of data

Answer 11

correlation

Question 12

both sets of data values increase

Answer 12

positive correlation

Question 13

one set of data values increases as the other set decreases

Answer 13

negative correlation

Question 14

there is no relationship between the data sets

Answer 14

no correlation

Question 15

helps show the correlation between data sets more clearly; helpful for making predictions based on data

Answer 15

trend line

Question 16

a list of numbers that often forms a pattern

Answer 16

sequence

Question 17

each number in a sequence

Answer 17

term

Question 18

when the terms of a sequence differ by the same nonzero number d

Answer 18

arithmetic sequence

Question 19

d in an arithmetic sequence

Answer 19

common difference