PRE CALCULUS

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find the range of the following functions

g(x) =x/x-2

  • PRE CALCULUS -

    If you mean
    g(x) = x/(x-2) then the range is all real values of y except y = 1

  • PRE CALCULUS -

    how did you get that and how would you graph this function

  • PRE CALCULUS -

    as x --> ±∞
    the value of x/(x-2) approaches 1, but no value of x will give us 1
    try solving 1 = x/(x-2)
    x-2 = x
    0 = 2 , which is a contradiction, so no value of x makes x.(x-2) equal to 1

    e.g. let x = 1000000
    then g(x) or y = 1000000/999998 = 1.000002
    let x = -1000000
    then y = -1000000/-1000002 = .999998

    so y = 1 is a horizontal asymptote
    there is also a vertical asymptote at x=2, since x=2 makes y undefined.

    the graph will be a hyperbola with major axis as y = x - 1 and centre (2,1)

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