Post a New Question

Pre-Calc

posted by .

I'm stuck on a pre-calc problem. I need to find y as a function of x, where the constant c is a positive number for In(y-1)+In(y+1)= -x+c

express your question as
ln[(y-1)(y+1)] = -x+c

change that to exponential form

e^(-x+c) = (y-1)(y+1)
e^(-x+c) = y^2 - 1
y^2 = e^(-x+c) + 1

y = ± sqrt(e^(-x+c) + 1)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Pre Calc

    Can someone help me understand how to do this: I need to find two solutions to the problem (x-2)^2 + (y+3)^2 = 9
  2. pre calc

    given x=t^2 and y=t-2 find a relationship between x amd y( express y in terms of x) is the relationship a function
  3. pre calc

    Express the function f(x)=1/(x-2)in the form g of h if h(x)=x-2. Find the function g(x). g(x)=?
  4. Pre-Calc

    I am stuck solving this problem, any help please..Many thanks find all numbers x that satisfy the given equation ln(2x) ------- =2 ln(3x)
  5. Pre-Calc

    Can someone show me how to do this please. I am stuck. find a number x such that e^2x – 12e^x =13
  6. pre calc

    Find the critical number of the function. g(t) = | 6t - 9 | t =
  7. Pre-Calc

    Please help me with this problem-I'm stuck (x-2)/(x+2) = (x+10)/x I'm not even sure where to start-Thanks for any help you can provide
  8. Pre-Calc

    Can you show me how to find the rectangular equation of r=2costheta + 3 sin theta All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one …
  9. Pre-Calc Help!

    I really need help with this question. Thanks! Find the zeros of the function algebraically. Be sure to show all work. f(x)=x^2-8x+15 --------------- 10x
  10. Pre-Calc

    Please help stuck on this one question Find (fog)(2) and (f+g)(2) when f(x)= 1/x and g(x)=4x+9

More Similar Questions

Post a New Question