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what is the domain of the function represented by the graph?
there is no graph... but most chance it's all real numbers
The number line is a graph of the?
There is a similar question which was answered as graph of real numbers. It could also be a graph of the line y=0, or a graph of the x-axis.
What is the range of y equals 8x-3?
11
What is the range of the square root function?
The answer depends on the domain. If the domain is non-negative real numbers, then the range is the whole of the real numbers. If the domain is the whole of the real numbers (or the complex plane) , the range is the complex plane.
What is the domain of the square root of x mulitplied by x-9?
To an extent, the answer depends on what the range is. The domain can be the set of complex numbers, with the range also the complex numbers. The domain can be the whole of the real numbers if the range can be complex. If the range needs to be real, then the domain must be the real numbers excluding the interval (0,9). As the range is restricted (rational, integer), the domain will also shrink.
