Thursday

November 27, 2014

November 27, 2014

Posted by **Cat** on Tuesday, November 27, 2007 at 2:48pm.

i) the graph of f is symmetric about the y-axis

ii) limit as x approaches 2+ of f(x) is positive infinity

iii) f'(1) = -2

Determine the values of a, b, c

I got that c = 4 from the first i). I'm stuck on the second one because

f(x) = f(-x)

(ax+b)/(x^2 - c) = (-ax+b)/(x^2 - c)

ax+b = -ax+b

1=-1 ????

- Calculus -
**bobpursley**, Tuesday, November 27, 2007 at 4:17pmIf it is symettric, then a has to be zero. If a is not zero, then it is an odd function. a being zero satisfies your solution.

**Answer this Question**

**Related Questions**

calculus - What is the limit of the function as x approaches infinity? 4x^4 - 4^...

calculus - evaluate the limit as x approaches positive and negative infinity (x^...

calculus - what is the answer for the integral of (1/(xln(x)) from 1 to infinity...

Pre-Calculus-check answers - The graph of the equation y=x^3-x is symmetric with...

calculus - if i define the function f(x)= x^3-x^2-3x-1 and h(x) = f(x)/g(x), ...

AP Calculus - if i define the function f(x)= x^3-x^2-3x-1 and h(x) = f(x)/g(x), ...

Calculus - Another one I'm not sure about is the limit as x approaches infinity ...

Math-Calculus - Hi, I am trying to figure out what the limit as h approaches 0 ...

calculus - What is the limit of the function as x approaches infinity? (x^4 - 7x...

Calculus - Does the series (1+sin(n))/(10^n) from summation 0 to positive ...