Review And Preview

Question 0

Function

Answer 0

A relation such that no two y-coordinates have the same x-coordinate
Can be seen with vertical line test
•x does not repeat

Every function is a relation, but not every relation is a function

Question 1

Relation

Answer 1

Any set of ordered pairs (x,y)
Can be represented by an equation, a table of values, a graph
Everything is a relation, not everything is a function

Question 2

Domain

Answer 2

The domain of a function is the set of real values of the independent variable (x) that produce real values for the dependent variable (y)
•Domain is X

Question 3

Range

Answer 3

The set of real values for the dependent variable

•Range is Y

Question 4

Function notation

Answer 4

Writing y as f(x)
Does not mean f multiplied by x
It gives us ability to see x value and y value at the same time
f(x)=y

Question 5

You can’t square root a …

Answer 5

Negative number

You can square root numbers equal to or greater than zero

Question 6

Absolute value

Answer 6

The distance a number is from zero

Get answer first before changing to a positive

Question 7

Factoring

Answer 7

Write an expression as a product

Factor completely

Question 8

Conjugate binomials

Answer 8

Two binomials with identical terms but opposite signs on the second term

Question 9

The zero product property

Answer 9

This property states that is a X b = 0, then either a=0 or b=0