SOLUTION: Please help me with this problem.I'm not sure what to do. I have to graph each function and state its domain and range. y= sqrt(x-1) + 2 Thank you very much.

Algebra ->  Rational-functions -> SOLUTION: Please help me with this problem.I'm not sure what to do. I have to graph each function and state its domain and range. y= sqrt(x-1) + 2 Thank you very much.      Log On


   

Question 525627: Please help me with this problem.I'm not sure what to do.
I have to graph each function and state its domain and range.
y= sqrt(x-1) + 2
Thank you very much.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I have to graph each function and state its domain and range.
y= sqrt(x-1) + 2
----
Domain: The radicand cannot be negative.
So, s-1 >= 0
x >= 1
----
Domain: All Real numbers >= 1
------------------------------------
Range:
Value of sqrt(x-1) >=0
So, value of sqrt(x-1)+2 >= 2
---
Range: All Real Numbers >= 2
=======================
Graph:
graph%28400%2C400%2C-10%2C20%2C-10%2C20%2Csqrt%28x-1%29%2B2%29
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Cheers,
Stan H.