Chapter 2

Question 1

Domain

Answer 1

The set of inputs that are the x values

Question 2

Range

Answer 2

The set of outputs that are the y coordinates

Question 3

Function

Answer 3

A relation in which each element of the domain directly corresponds with an element of the range.

Question 4

How to identify a relation as a function

Answer 4

Check to see if any values of the range share a values of the domain

Question 5

How to identify if it is a function on a graph

Answer 5

Vertical line test.

Question 6

X is the

Answer 6

Independant variable

Question 7

F(x) is the

Answer 7

Dependant variable

Question 8

How to determine varies directly and the constant of variation

Answer 8

Put the relation into fraction form. If the fractions are equal then it varies directly. The constant of variation is the simplified fraction

Question 9

Telling Varies directly by an equation

Answer 9

If you can simplify it to y=ax then it varies directly

Y=ax+2 does not vary directly.

Question 10

Translation

Answer 10

Shifts the graph without changing the shape

Question 11

Reflection

Answer 11

Reflects the graph across an axis.
-fx = across x
F(-x) =across y

Question 12

2f(x)

Answer 12

Vertical stretch

Question 13

1/2F(x)

Answer 13

Vertical compression

Question 14

F(2x)

Answer 14

Horizontal compression

Question 15

F(1/2x)

Answer 15

Horizontal stretch

Question 16

Axis of symmetry

Answer 16

The line that symmetrically divides the graph of an absolute value function

Question 17

Vertex

Answer 17

The point of origin for the graph of an absolute value equation.

Question 18

Relation

Answer 18

A set of pairs of input and output values.