functions unit

Question 1

vertical line

Answer 1

x=number

Question 2

horizontal line

Answer 2

y= number

Question 3

How do recognize an even function equation?

Answer 3

the biggest exponent is even

Question 4

How do recognize an odd function equation?

Answer 4

the biggest exponent is odd

Question 5

linear parent function

Answer 5

y=x

Question 6

domain deals with x or y

Answer 6

x

Question 7

range deals with x or y

Answer 7

y

Question 8

discrete graphs

Answer 8

only points

Question 9

continuous graph

Answer 9

any line

Question 10

(image of stopped continuous)

Answer 10

continuous

Question 11

(image of infinite continuous)

Answer 11

continuous

Question 12

what is the definition of a function?

Answer 12

every x has exactly 1 y

Question 13

(0,3) (-2,4) (5,8) (6,3) is this a function?

Answer 13

yes

Question 14

(0,3) (-2,4) (5,8) (0,3) is this a function?

Answer 14

yes

Question 15

(0,3) (-2,4) (5,8) (-2,7) is this a function?

Answer 15

no

Question 16

(0,3) (-2,4) (5,8) (2,7) is this a function?

Answer 16

yes

Question 17

Looking at a graph, how can we tell if something is a function?

Answer 17

it passes the vertical line test

Question 18

f(x)=2x+1 f(2)=____

Answer 18

5

Question 19

f(2) is 2 an x or a y value?

Answer 19

x

Question 20

f(x)=2x+1 f(x)=19

Answer 20

x=9

Question 21

What would you do to f(x) and g(x) if you see (f+g)(x)?

Answer 21

add them f(x)+g(x)

Question 22

What would you do to f(x) and g(x) if you see (f-g)(x)?

Answer 22

subtract them f(x)-g(x)

Question 23

What would you do to f(x) and g(x) if you see (f-g)(3)?

Answer 23

plug 3 in for x and then subtract f(3)-g(3)

Question 24

What would you do to f(x) and g(x) if you see (f(g(3))?

Answer 24

Plug 3 in for x in g(x) and then plu that number into x inside f(x)

Question 25

What would you do to f(x) and g(x) if you see (f(g(x))?

Answer 25

Plug the g(x) equation in for x in the f(x) equation

Question 26

f(x)=19 is 19 an x or a y value?

Answer 26

y

Question 27

Translations of graphs do what?

Answer 27

move the graph left, right, up or down from the origin

Question 28

If we see (x-2) in the equation what direction are we moving the graph?

Answer 28

2 to the right

Question 29

y=(x-2)^2+3 what are the translations?

Answer 29

2 to the right and 3 up

Question 30

y=(x)^2-3 what are the translations?

Answer 30

3 down

Question 31

y+3=(x+2)^2 what are the translations?

Answer 31

2 to the left and 3 down

Question 32

how can you graph any equation?

Answer 32

make an x y chart

Question 33

How do you make an x y chart?

Answer 33

pick x values and then plug them into x in the equation to find y values

Question 34

What button do you hit on your calculator to write an equation?

Answer 34

y=

Question 35

What button do you hit on your calculator to write an x?

Answer 35

x,T,o,n

Question 36

How do you change your screen so you can see further up on the graph?

Answer 36

window change the yMax

Question 37

How do you change your screen so you can see further down on the graph?

Answer 37

window change the yMin

Question 38

How do you change your screen so you can see further left on the graph?

Answer 38

window change the xMin

Question 39

How do you change your screen so you can see further right on the graph?

Answer 39

window change the xMax

Question 40

What buttons do you press if you get an error when looking at the graph?

Answer 40

zoom zstandard

Question 41

To get to intersection on the calculator what buttons do you press?

Answer 41

2nd Trace

Question 42

After you have clicked on intersection on the calculator, what do you do to find the intersection point on the graph?

Answer 42

move cursor to intersection point and press enter 3 times

Question 43

How do you quit out of a screen when clear doesn't work?

Answer 43

2nd mode

Question 44

How do you put an exponent into your calculator?

Answer 44

^

Question 45

To put a fraction into a calculator what must go around the top and bottom of the fraction bar?

Answer 45

( )

Question 46

How do you change a decimal into a fraction on the calculator?

Answer 46

math frac (enter, enter)

Question 47

When finding a y intercept what do you make x?

Answer 47

0

Question 48

If you have an equation set equal to 0 what are you finding?

Answer 48

x intercept

Question 49

When finding an x intercept what do you make y?

Answer 49

0

Question 50

You always write intercepts as ______

Answer 50

points

Question 51

x intercepts will be given as

Answer 51

( ,0)

Question 52

y intercepts will be given as

Answer 52

(0, )

Question 53

To find an x intercept on the calculator what do you do in the y= screen?

Answer 53

y1= equation y2=0

Question 54

If you are finding x intercepts from the calcualtor, and you set y2=0, what buttons do you press next?

Answer 54

2nd trace-- intersection