Homework Help: Calc again sorry

Posted by Samantha on Wednesday, November 5, 2008 at 12:29pm.

4) The graph of y = (x)/(1+25x^2) for x is greater than or equal to 0 has a horizontal tangent at x = what.

So what I did was find the first derivative. I did the quotient rule and ended up with
x50x - 1+25x^2
---------------
(1+25x^2)^2

I equated that with 0 but I don't know how to solve for x without using a calculator. Someone please help.

No one has answered this question yet.

Answer this Question

Related Questions

Calculus - Let f be a twice-differentiable function defined on the interval -1.2...
Calculus - Functions? - #1. A cubic polynomial function f is defined by f(x) = ...
Calculus c - Let f be a twice-differentiable function defined on the interval -1...
Algebra - Use a graphing calculator or a computer to graph the system of ...
Math - I'm having a hard time with graphing this problem. Could someone ...
algebra - use the inequality -4t-8 is less than or equal to 12 a. t is greater ...
calc - Consider the following function. f(x) = 4x3 + x2 - 0.05x + 10 Find the ...
calculus - If a function f is continuous for all x and if f has a relative ...
Calc - Write the equation of the line tangent to the graph of the function at ...
calculus - let f be the function f(x) = x^3 + 3x^2 - x + 2 a. the tangent to the...

For Further Reading

First Name:
School Subject:
Answer: