Multiple Choice

What is the domain of the function y equals 3 start root 6 x plus 42 end root?
(1 point)
Responses

x ≥ 0
x ≥ 0

x ≤ 7
x ≤ 7

x ≥ –6
x ≥ –6

x ≥ –7

x ≥ -7