Question

1. What is the domain of the function y = 3 squared root 6x + 42
? (1 point)
x ≥ 0
x ≤ 7
x ≥ –6
x ≥ –7

Answer 1

This problem might appear just a little easier if you'd write it out symbolically:\[y=3\sqrt{(6x+42)}\] Is this what you meant?

Answer 2

yes

Answer 3

Hint: the expression in the square root cannot be negative

Answer 4

thanks that helps a lil

Answer 5

so look for values of x which ensure that

Answer 6

Look for values of x for which the expression under the radical sign is not negative.\[6x+42\ge0\]