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Social ScienceIn the function: f(x)= (9x^2)/ ((x^2)-49)Indicate the domain and range in interval notation. What are the x-intercepts and the y-intercepts of the function?
In the function:
f(x)= (9x^2)/ ((x^2)-49)
Indicate the domain and range in interval notation.
What are the x-intercepts and the y-intercepts of the function?
Expert Answer
Denominator of the function can not be equal to 0.
To find range, express x in terms of y.
We want 49y/(y-9) to be greater than or equal to 0.
Check that using a number line and sign test.
49y=0 means...
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