Question

Use the graph to determine the x- and y-intercepts .

Answer 1

A. x-intercept: -3; y-intercepts: 3, 1, 5

B. x-intercepts: -3, 1, -5; y-intercept: -3

C. x-intercepts: 3, 1, 5; y-intercept: -3

D. x-intercept: -3; y-intercepts: -3, 1, -5

Answer 2

@jim_thompson5910 can you help with another when you get a chance.

Answer 3

-3 for y

Answer 4

-5, -3, and 1 for x

Answer 5

just look at x and y axis.

Answer 6

B

Answer 7

okay thanks @timo86m could you help with one more im having a lot of trouble with pre calc

Answer 8

Sure

Answer 9

Use the graph to determine the function's domain and range.

Answer 10

A. domain: [0, ∞) range: [-1, ∞)

B. domain: (-∞, ∞) range: [-1, ∞)

C. domain: [0, ∞) range: [0, ∞)

D. domain: [0, ∞) range: (-∞, ∞)

Answer 11

that looks like a +sqrt(x)

Answer 12

domain is 0 to infinity. THose are your x values

Answer 13

okay so how do i find the range?

Answer 14

range are all y values :P

Answer 15

so im confused would it be d than?

Answer 16

-1 to infinity

Answer 17

I think it a :)

Answer 18

okay thank you so much i cant crasp these concepts :(
Find the domain of the function.

f(x) = -2x + 4

A. (-∞, 0) (0, ∞)

B. (-∞, ∞)

C. [-4, ∞)

D. (0, ∞)

Answer 19

can you find of explain to me how you find the domain!

Answer 20

graph it first use google or wolfram

-2x + 4

Answer 21

this is what is gave me http://www.google.com/#sclient=psy-ab&q=graph+-2x+%2B+4&oq=graph+-2x+%2B+4&gs_l=hp.3...11029.17070.0.17378.13.13.0.0.0.0.129.1203.9j4.13.0...0.0.0..1c.1.17.psy-ab.qf5CMFQ8-Vg&pbx=1&bav=on.2,or.r_qf.&bvm=bv.48340889,d.aWc&fp=e8d44ae48998822a&biw=1600&bih=775 is it correect

Answer 22

However you can tell that linear functions usually have the domain of type B

Answer 23

im confused..

Answer 24

well domain means the x values :) aka left and right

Answer 25

it goes from infinity to infinity

cuzz you can plug in every number you can think of to get a value.

Answer 26

okay so most linear functions are like that. so this one would be B?

Answer 27

Yes for the domain

Answer 28

all linear functions by linear i mean like y=mx+b

Answer 29

okay can i ask you to help me figure out one more..

Answer 30

sure

Answer 31

your saving my life right now lol i appreciate it

Answer 32

Find the domain of the function\[f(x) = \sqrt{6-x}\]

Answer 33

ooh :D

Answer 34

6 to infinity

Answer 35

A. (-∞, 6) (6, ∞)
B.(-infinity, srt6) (sqrt 6, infinity)
C. (-infinity, sqrt6)
D. (-infinity, 6)

Answer 36

so would that be a? or d?

Answer 37

It is A if you include imaginary part i think.

Answer 38

okay well im going to go with a thank you so much i will come to you if i need help some more.. !

Answer 39

Or d wait

Answer 40

D

Answer 41

its d?
& i do need your help on more more of these questions

Answer 42

one more *

Answer 43

D. (-infinity, 6) and it should be

D. (-infinity, 6] cuzz ] means inclusion and ) means not included.

Answer 44

\[g(x) =\frac{ 3x }{ x ^{2}-81 }\]
Find the domain of the function.

Answer 45

for the other question all of them had this sign ] at the end

Answer 46

A. (-∞, ∞)

B. (-∞, -9) (-9, 9) (9, ∞)

C. (81, ∞)

D. (-∞, 0) (0, ∞)

Answer 47

(3x)/(x^2-81)

if you graph it you'll see it goes

(-∞, -9) (-9, 9) (9, ∞)

B :)

Use graphing calculator it is easiest way i know of.

Answer 48

thankk you .. i need to buy on i dont have one..

Answer 49

there are free ones
Google has a free one.

Answer 50

wolfram alpha has another free one.

Answer 51

okay thank you im going to have to download it

Answer 52

no need :P to download

Answer 53

oh okay (:

Answer 54

just remember domain is all the x values aka what you plug in, aka left and right.

Range is y values aka the results, aka the up and down :D

Answer 55

alrightyy !!
help me with one more thing please and explain to me
Use the shape of the graph to name the function.



A. Standard quadratic function

B. Standard cubic function

C. Square root function

D. Constant function

Answer 56

B :D

Answer 57

A are shaped like U Or n
c are c or backward c shaped. Not exactly but i can explain more if you want

D is just a straight line I think :)

Answer 58

thankk youuu

Answer 59

:D