test 3 math

Question 1

relation

Answer 1

a set of ordered pairs (can be defined by an equation and/or a graph)

Question 2

function

Answer 2

a relation in which every input has exactly one output

Question 3

domain of a function

Answer 3

all possible x-values that can be input into the function

Question 4

range of a function

Answer 4

all possible y-values output from the function

Question 5

one to one function

Answer 5

if for every value in the range, there is exactly one x value that equals it

Question 6

composition of functions

Answer 6

F(g(x))

Question 7

identity function

Answer 7

F(x)=x

Question 8

inverse function

Answer 8

when composed with the original function, gives you the identity function

Question 9

parent function

Answer 9

describes an entire class of functions

Question 10

shift graph

Answer 10

move a graph up, down, left or right

Question 11

horizontal reflection

Answer 11

y-axis reflection (mirror)

Question 12

vertical reflection

Answer 12

x-axis reflection (pond)

Question 13

open dot

Answer 13

(,) equal to or ___

Question 14

closed dot

Answer 14

[,] less or more than

Question 15

writing domain and range

Answer 15

{,}

Question 16

when finding domain of function SQRT means

Answer 16

less than or equal to 0
0 always les sthan or equal to X

Question 17

when finding domain of a function / FRACTION means

Answer 17

> 0

Question 18

remember:

Answer 18

difference of squares
x^2 –> (x+1)(x+1)