Which graph represents y= square root x?

is the square root function. The graph of this function has been attached below. As you can see, this is in fact a function it passes the Vertical Line Test for Functions that establishes that if a vertical line intersects a graph at most one point, then this is a function. From the square root function we know:

The domain of the function is the set of all nonnegative real numbers. The range of the function is the set of all nonnegative real numbers. The origin is an intercept of the graph.   The graph increases on the interval .

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