f(x)=2x+3, x or = 0 graph this

Question

f(x)=2x+3, x<0; 3-x, x > or = 0
graph this

psymon · Answer

Would you know how to graph any of those 2 graphs individually? Like if you had to graph just 2x + 3 could you do it?

kittiwitti1 · Answer

Yes?

kittiwitti1 · Answer

It's like a v-shape right

psymon · Answer

Well, draw the graph of 2x+ 3 if you can please?

kittiwitti1 · Answer

What. How? o.o

kittiwitti1 · Answer

|dw:1380004075857:dw|

kittiwitti1 · Answer

Something like that

psymon · Answer

Thats absolute value.

kittiwitti1 · Answer

|dw:1380004096528:dw|
Uh no that was the piecewise

psymon · Answer

Lol, you didn tmark the lines or anything to even try and makeit precise xD

kittiwitti1 · Answer

idk how to...

kittiwitti1 · Answer

|dw:1380004178330:dw|
ugly but here you go

psymon · Answer

We should probably learn how to draw these precisely then xD So from 2x + 3, can you tell me the y-intercept and slope?

kittiwitti1 · Answer

$$f(x) = \left(\begin{matrix}2x+3, x <0 \ 3-x, x \ge 0\end{matrix}\right)$$

psymon · Answer

Yeah, I know. But we have to know how to properly graph the 2x+3 and the 3-x part first.

kittiwitti1 · Answer

How do you get a proper graph?

psymon · Answer

Well, I was trying to lead us up to that. Just want to make sure you know what you need to know. So yeah, do you know the slope and y-intercept of 2x+3?

kittiwitti1 · Answer

|dw:1380004406789:dw|
I swear this is the best I can do...