Pre-calculus

x-2/x2-1
This equation is a function or not?

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  1. each value of x maps into a specific y value. Yes, except the function is not defined for x=1

  2. what is the domain?

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  3. domain is all real numbers except x=+-1

  4. What is the inverse function of these function?
    f(x)= 1/x^2-1
    f(x)= x 2/3-3

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  5. What is the inverse function of these functions?
    f(x)= 1/x^2-1
    f(x)= x 2/3-3

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  6. The perimeter of a rectangle is 72 inches. Its length is three and a half times the width. Calculate Your Dimensions.

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