Question

What are the domain and range of the function y=2 sqrt(3x +4) -5?

Answer 1

domain is possible values of x we can take
in square root the number must be >= 0
always
so 3x+4>=0
3x>=-4
x>=-4/3 (domain)
range is the output we get

Answer 2

\[y=2*\sqrt{3x+4}-5\]

Answer 3

its min value is when 3x+4=0
that is y=2*0-5=-5
range>= -5

Answer 4

@jerryK

Answer 5

Yeah, @g17 has it right..