SOLUTION: State the reciprocal function of f(x)=5x^2 +13x-6 and state the equations of any vertical asymptote(s) of the reciprocal function. Thanks:)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: State the reciprocal function of f(x)=5x^2 +13x-6 and state the equations of any vertical asymptote(s) of the reciprocal function. Thanks:)       Log On


   



Question 1199809: State the reciprocal function of f(x)=5x^2 +13x-6 and state the equations of any vertical asymptote(s) of the reciprocal function.
Thanks:)

Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
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The reciprocal function is  f(x) = 1%2F%285x%5E2+%2B+13x+-+6%29.


Vertical asymptotes are where the denominator polynomial has zeroes.


In the denominator, you have a quadratic function.


Its zeroes are the root of this polynomial.


Find the roots using the quadratic formula


    x%5B1%2C2%5D = %28-13+%2B-+sqrt%2813%5E2+-+4%2A5%2A%28-6%29%29%29%2F%282%2A5%29 = %28-13+%2B-+sqrt%28289%29%29%2F10 = %28-13+%2B-+17%29%2F10.


The roots are   -3  and  4%2F10 = 0.4 = 2%2F5.


So, vertical asymptotes are  x = -3  and  x = 4%2F10 = 0.4 = 2%2F5.

Solved, with full explanations.