Question #2acf4

1 Answer
Oliver M.
Feb 18, 2018

domain: #[1,∞)#

range: #[2,∞)#

Explanation:

This is the graph for #2+sqrt(x+1)#
graph{2+sqrt(x-1) [-10, 10, -5, 5]}
Any #x# values #<1# would be negitive (as ##1 is taken from the #x# value) the square root would not be real.

eg.
#sqrt(0.2-1)#=#sqrt(-0.8)#

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