Chapter 2

Question 1

A function in which each element of the domain pairs to exactly one unique element of the range is called a(n) _____ function.

Answer 1

one-to-one

Question 2

A function in which each element of the range corresponds to an element of the domain is called a(n) ______ function.

Answer 2

onto

Question 3

A relation in which the domain is a set of individual points is said to be a ___________ relation

Answer 3

discrete

Question 4

When the domain of a relation has an infinite number of elements and the relation can be graphed with a line or a smooth curve, the relation is a _______ relation.

Answer 4

continuous

Question 5

The test you can use on a graph to determine whether the relation is a function is called the _________ ________ test.

Answer 5

vertical line

Question 6

The variable, often x, with values making up the domain is called the _____ variable.

Answer 6

independent

Question 7

The variable, often y, is called the _____ variable because its values depend on x.

Answer 7

dependent

Question 8

Relations that have straight line graphs are called _____ _____.

Answer 8

linear relations

Question 9

A ______ function is a function with ordered pairs that satisfy a linear equation

Answer 9

linear

Question 10

The standard form equation of a line is _______.

Answer 10

Ax + By = C

Question 11

The y-coordinate of the point at which a graph crosses the y-axis is called the ____________.

Answer 11

y-intercept

Question 12

The x-coordinate of the point at which a graph crosses the x-axis is called the __________.

Answer 12

x-intercept

Question 13

The ratio that compares how much one quantity changes, on average, relative to the change in another quantity is known as the _____ ___ _____.

Answer 13

rate of change

Question 14

The _____ of a line is the ratio of the change in the y-coordinates to the corresponding change in the x-coordinates.

Answer 14

slope

Question 15

Equations written in the form y=mx + b are said to be in _______- _______ form

Answer 15

slope-intercept

Question 16

Two nonvertical lines are _____ if an only if they have the same slope.

Answer 16

parallel

Question 17

Two non-vertical lines are _______ if an only if their slopes are opposite reciprocals of each other.

Answer 17

perpendicular

Question 18

Data with two variables are called _______ data.

Answer 18

bivariate

Question 19

The v-shaped graph of a function that contains an algebraic expression within absolute value symbols is a(n) _______ _______ function.

Answer 19

absolute value

Question 20

A _________ of graphs is a group of graphs that display one or more similar characteristics.

Answer 20

family

Question 21

The parent function of ________ functions is f(x) = x^2.

Answer 21

quadratic

Question 22

This type of transformation moves a figure up, down, left, or right.

Answer 22

translation

Question 23

This type of transformation flips a figure over a line.

Answer 23

reflection

Question 24

This type of transformation shrinks or enlarges a figure proportionally.

Answer 24

dilation

Question 25

The ____________ coefficient is a measure that shows how well data are modeled by a linear equation.

Answer 25

correlation