What is the domain and range of # f(x)=sqrt(5x-10)#?
1 Answer
Aug 2, 2018
Explanation:
#"For the radical we require"#
#5x-10>=0rArr5x>=10rArrx>=2#
#"domain is "x inRR,x>=2#
#[2,oo)larrcolor(blue)"in interval notation"#
#f(2)=0#
#"range is "y inRR,y>=0#
#[0,oo)" in interval notation"#
graph{sqrt(5x-10) [-10, 10, -5, 5]}
