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Find the domain and range

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Reference no: EM13833092

Find the domain and range for y=x^2+9.

Is the answer all real numbers? How would you enter that in interval notation?

From Googling the definition of real numbers, I now understand that the infinity sign would not be included.

For a continuous function you use closed brackets, but I just don't know what numbers to put into the brackets.

Reference no: EM13833092

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