What is the domain and range of #y = 3 sqrt (x-2)#?
1 Answer
Apr 25, 2017
Explanation:
For real numbers the root cannot be negative.
#rArrx-2>=0rArrx>=2#
#rArr"domain is " x inRR,x>=2#
#"hence " y>=0#
#rArr"range is " y inRR,y>=0#
graph{3sqrt(x-2) [-10, 10, -5, 5]}
