Question

Sketch the graph of the given function.
g(x) = x3 − 3x, domain [−2, 2]

So I have a small question on this problem. I am finding the x-values, so I set the equation=0 and I got x=0,x=+sqrt 3, x=-sqrt 3. I am not sure of the y coordinates to each of these values, any ideas?

Answer 1

what does the function look like

Answer 2

can you see this link? http://www.webassign.net/waplots/9/0/918550fe567c22adff6204a23facdd.gif

Answer 3

well example if x=0 then I have y=g(x)=0^3+3(0)=0 next is x=3 then I have y=3^3+3(3)=27+9=36

Answer 4

sorry thats plus so 27-9=18

Answer 5

I thought you're just supposed to set the whole equation=0 to find the x-intercepts? x3 − 3x=0

Answer 6

then \[x ^{3}-3x= x(x ^{2}-3) \]
so x=0 or x\[x ^{2}-3=0\]
so x=[\sqrt{3}\]

Answer 7

right

Answer 8

\[x=\pm \sqrt{3}\]

Answer 9

I am just not sure what the y value would be..would I write it as sqrt3,0 or something? or is there a y value? because I tried that and it didnt work

Answer 10

because out of this equation there are 3 x-values, x=0, x=sqrt 3, x=sqrt -3

Answer 11

the question says to graph, is it asking for x cooridants

Answer 12

yup

Answer 13

sorry I already graphed it

Answer 14

there's just multiple parts to the question

Answer 15

and I am just stuck on the coordinates part

Answer 16

what is the other parts?

Answer 17

I mean I got the x's just dont know what the y's would be

Answer 18

Indicate the x- and y-intercepts.

Answer 19

so there are three of them like I said earlier but Idk how I would write it; like (sqrt3,0) (whats the y?)

Answer 20

on x intercepts, the y is 0. so write it as the pair (value, 0)

Answer 21

I tried that it didnt work :/

Answer 22

well (0,0) and (-sqrt3,0) and (sqrt3,0)

Answer 23

yea I did that for some reason its saying its wrong.

Answer 24

please copy the question and let me see

Answer 25

nevermind I got it! I guess this program I am working with just requires a different order. thanks !