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\[\frac{ \lim }{ x \rightarrow-7^{+} }f(x)=-\infty \]Graph this.

how far did you get?

I'm going to start a blank xy graph. Add to the graph what you have so far
|dw:1441237470407:dw|

click the pencil on my drawing to be able to draw on it

I couldn't figure out where to start.

How can you draw infinity?

ok let's start by plotting a point at -7 on the x axis
|dw:1441237530533:dw|

then draw a vertical dashed line through -7
|dw:1441237577069:dw|

or something like this
|dw:1441237697243:dw|

sure

Thanks so much!\[\frac{ \lim }{ x \rightarrow5^{+} }f(x)=-8\]

|dw:1441237595205:dw|

That's what I put but I don't think it's right...

I'm going to delete the horizontal line
|dw:1441237965993:dw|

here is an alternative way
|dw:1441238056519:dw|

So there is no line coming from the right?

`So there is no line coming from the right?` what do you mean?

*left

I meant left sorry.

So why do they need a plus next to the 5 under the limit?

that notation means "right hand limit" since we're approaching from the right side of that x value

So how does that apply to the graph?

Okay I'm going to go with your answer just in case.

\[\frac{ \lim }{ x \rightarrow \infty }f(x)=4\]

a little \(\LaTeX\) help for you
\[\lim_{ x \to\infty }f(x)=4\]
\lim_{ x \to\infty }f(x)=4

|dw:1441238256310:dw|

What is Latex?

it's a tool to help write math notation

Oh...

I'm not sure what you mean

you mean like that \(\Large 5^{+}\) notation?

|dw:1441239084919:dw|

|dw:1441239111134:dw|

|dw:1441239138986:dw|

|dw:1441238954330:dw|

Sorry the drawing board was malfunctioning

It's suppose to be a straight line

Ohh ya! I forgot about that.

something like this is also possible
|dw:1441239609022:dw|

Okay thanks! That's all I needed. :)

you're welcome