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[basic help] Drawing functions

1. Homework Statement
I need to draw this function:
upload_2016-12-8_18-49-49.png

however I don't get how?
I have the solution
upload_2016-12-8_18-51-36.png

but I don't understand how do I get that from the given function. Someone please try to explain? Thanks
 

LCKurtz

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1. Homework Statement
I need to draw this function:
View attachment 110120
however I don't get how?
I have the solution
View attachment 110121
but I don't understand how do I get that from the given function. Someone please try to explain? Thanks
Can you plot straight lines and parabolas? If so, plot the graph of ##y=x+1##. It has slope ##1## and ##y## intercept ##1##. Notice that the part of your graph where ##x < -1## agrees with your graph, so just keep that part. Similarly, do the other two parts.
 
Yes, that does it. I feel too dumb right now. Ah, thank you.
 

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