Question

Graph the piecewise function

Answer 1

@Vocaloid

Answer 2

what is the answer ?

Answer 3

Are you still there?

Answer 4

yes

Answer 5

Do you know how to do piecewise functions?

Answer 6

As far as graphing them?

Answer 7

no

Answer 8

https://www.youtube.com/watch?v=Gtyf0xCB0kc

Watch this video. It is only six minutes, and he explains it really well. I am confident that you will be able to do them after this. Then I can check your work.

Answer 9

Though honestly, these are really simple. You just need a good teacher.

Answer 10

and i have a lot of other questions to be asked so really i can't really watch the video at this moment if you understand

Answer 11

so do you know how to help me with it instead of the video ?

Answer 12

It is a concept where it is best shown visually, and I suck at the drawing tool xD

Answer 13

So I would recommend watching the video. It really is not that long.

Answer 14

ok i just watched it

Answer 15

but do you know where vocaloid is

Answer 16

She appears to be unavailable at the moment. What part are you not getting about piecewise functions?

Separate the information in the brackets into two groups. As stated in the video, you can call the expressions on the left the "behaviors" and the inequalities on the right "intervals."

All you have to do is graph the lines, but only using those x values.

For example

3x - 5 if x < or equal to -1

Graph the line, but using x values that are less than or equal to -1

Answer 17

Creating a graph in desmos so you can see it.

Answer 18

that's what exactly i did, is this correct ?

Answer 19

No.

Answer 20

Not for 3x -5 if x is less than or equal to -1

Answer 21

Yeah, so you would only graph the part of the line that falls under the blue area.

Answer 22

i've strolled and still don't see the graph

Answer 23

the line

Answer 24

I am having difficulty with the condition (interval) part being applied in desmos. But still, your most recent picture works. It would essentially end up looking like this.

Answer 25

You don't graph the rest of the line, because think of it this way. That line only exists under that condition.

Answer 26

Yes, just the closed circle and the arrow going off to the south west

Answer 27

The reason I say closed is because the line is less than or EQUAL to -1. If it were just less than, we would leave the circle open (not filled in).

Answer 28

ok so this shows the correct way ?

Answer 29

Yes. Just be sure to erase the line that is intercepting the x axis. Also remember to draw the other intervals. Lastly, make notations on the x axis and label them (-1 for example, so your teacher knows where the closed dot is).