Question

What is the range of the function f(x)=1/2sqrt of x ?

all real numbers
all real numbers greater than but not equal to 0
all real number less than or equal to 0
all real numbers greater than or equal to 0
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Answer 1

All real numbers greater than or equal to 0.

Explanation:

x must be greater or equal to zero because there is no real square root of a negative number.

So the lowest value of the function is 0 and it can be any value greater than that.