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Mathematics 7 Online
OpenStudy (anonymous):

f(x)=x+3 If -21

OpenStudy (anonymous):

what about it?

OpenStudy (anonymous):

and I have to sketch it I'm completely lost

OpenStudy (anonymous):

hmm...

OpenStudy (anonymous):

I'm sure you really are a life saver

OpenStudy (anonymous):

well, the way to sketch a "piece-wise" defined function is to attack each "piece" separately

OpenStudy (anonymous):

this is difficult to explain in words...

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

do I always use 0,1,and 2 to enter into the equation?

OpenStudy (anonymous):

to figure out what goes where?

OpenStudy (anonymous):

first lets get the function written in notation so we can see what we are dealing with...one second

OpenStudy (anonymous):

There are four parts to this question. a) find the domain, b) locate any intercepts, c) graph each function and d) based on the graph find the range. I don't understand where to start on any of it.

OpenStudy (anonymous):

I had the flu and missed one class and I don't understand

OpenStudy (anonymous):

this is what I think the function is...\[f(x)=x+3\], if \[-2\leq x <1\], 5 if \[x=1\], \[-x+2\] if \[x>1\]

OpenStudy (anonymous):

no worries, I just wanted to make sure I understood the function before starting an explanation

OpenStudy (anonymous):

yes thank you

OpenStudy (anonymous):

my suggestion is this, first mark your intervals on the x-axis with the appropriate (,),[, or ] notation

OpenStudy (anonymous):

then sketch the graph of the function with the rule that pertains to the appropriate interval

OpenStudy (anonymous):

this is a 5 second explanation with on a dry erase board...

OpenStudy (anonymous):

i suggest looking on youtube for a video demostration

OpenStudy (anonymous):

demonstration

OpenStudy (anonymous):

now what? I don't know anything about u tube or how to get a math video, I lucked out with you guys

OpenStudy (anonymous):

hello?

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