Question

Which inequality represents all values of x for which the product below is defined

Answer 1

The CORRECT answer is x _> 0

Explanation:

x= greater than or = to 0

Answer 2

C x >=0

Explanation:

Each term has to be defined

sqrt(5x) >= 0

Square each side

5x >=0

Divide by 5

5x/5 >=0/5

x >=0

sqrt(x+4) >=0

Square each side

x+4 >0=

Subtract 4 from each side

x+4-4 >=0-4

x >=0-4

The first is more restrictive so we use that

x>=0