Verified answer

In the real number system you cannot square root a negative.

So 2x-44 cannot be negative.

The smallest it can be is 0.

2x-44=0

2x=44

x=22

Answer c.

Note: anybody who tells you that the answer is 3 is telling you the least possible value for y not x.

22

a 3

the least value of the square root is 0

0 + 3 = 3

Examine the graph ... And you'll see that the minimum value = 3 (Ans. a)

Ref: http://www.wolframalpha.com/input/?i=y+%3D%E2%88%9...