Question

Screen Shot attached =)

Answer 1

what is the smallest x value that defines the function?

Answer 2

1

Answer 3

oops -3

Answer 4

how about the largest?

Answer 5

1

Answer 6

try again

Answer 7

9?

Answer 8

look at the last equation. What does it say?

Answer 9

anything greater than 1?

Answer 10

so what does that tell you about the domain?

Answer 11

x≥-3 and x>1 ?

Answer 12

[-3, infinity)

Answer 13

oooh ok

Answer 14

did you try b?

Answer 15

no..idk what to do...

Answer 16

it's asking for both x and y intercepts (if exist). So, are there any x-intercepts?

Answer 17

yes?

Answer 18

how would you check?

Answer 19

making it y=x+4 then solving for x which is x=-4?

Answer 20

ok, x = -4, but is -4 in the domain?

Answer 21

no..

Answer 22

so is (-4,0) the x intercept?

Answer 23

no

Answer 24

ok, check the next one

Answer 25

x=9, yes (9,0)

Answer 26

how did you get (9,0) ?

Answer 27

i dont know...9 is the x-intercept right?

Answer 28

@sourwing

Answer 29

so you plug 9 in for x, you get y = 0? is true for at least one of the three equations?

Answer 30

...im confused =(

Answer 31

when x = 9, what do you get?

Answer 32

13 and -6

Answer 33

so is f(9) = 0?

Answer 34

no

Answer 35

so is (9,0) the x-intercept?

Answer 36

no

Answer 37

good,
check the last one.

Answer 38

-(3)+3=0

Answer 39

good, so is (3,0) x-intercept?

Answer 40

yes

Answer 41

good. (3,0) is the x-intercept

what about y-intercept?

Answer 42

4, 9, and 3

Answer 43

when x = 0, what is y?

Answer 44

which one do you plug 0 in?

Answer 45

first one?

Answer 46

that's only when -3 <= x < 1, is 0 in this interval?

Answer 47

yes?

Answer 48

good, so whats's y?

Answer 49

(0,4)?

Answer 50

right

Answer 51

(3,0) is the x-intercept
(0,4) is the y-intercept

that's the answer to part b

Answer 52

ok =)

Answer 53

@sourwing how in the world do i graph it? it doesnt match the graphs im given..

Answer 54

second one

Answer 55

oh ok lol

Answer 56

thanks =)