SOLUTION: please show me how to graph f(x)=√x-2 without a calculator??

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Question 383538: please show me how to graph f(x)=√x-2 without a calculator??
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=sqrt%28x-2%29
You can generate the squares in your head.
When x=0, x%5E2=0, and sqrt%280%29=0
When x=1, x%5E2=1, and sqrt%281%29=1
When x=2, x%5E2=4, and sqrt%284%29=2
When x=3, x%5E2=9, and sqrt%289%29=3
When x=4, x%5E2=16, and sqrt%2816%29=4
When x=5, x%5E2=25, and sqrt%2825%29=5
So then when x-2=0, x=2, sqrt%28x-2%29=0
x-2=1, x=3, sqrt%28x-2%29=1
x-2=4, x=6,sqrt%28x-2%29=2
x-2=9, x=11,sqrt%28x-2%29=3
x-2=16,x=18, sqrt%28x-2%29=4
x-2=25,x=27,sqrt%28x-2%29=5
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Plot those points and connect the points with lines.
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