Monday
December 22, 2014

Homework Help: why is noone answering my question?!?!

Posted by luke on Sunday, January 28, 2007 at 9:58am.

A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical asymptotes x=3, x=-3.

I understand that to set it up, it is

y= ax+b / (x+3)(x-3).

I dont understand how to solve for a and b.

Put in the points. You have two points, and two unknowns.

(0,0)

0= 0+b / (0+3)(0-3).

Solving this easy: b is zero.

Now that you have b, next point
y= ax / (x+3)(x-3). ( 8/7, 8/7)
8/7= a 4
solve for a.

thank you so much for your help

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

rational functions - A rational function that passes through (0,0) and (4, 8/7) ...
rational functions... PLEASE HELPPPPP - A rational function that passes through...
Math - Verify these answers :] Would be thankies~ 1. Determine the intervals in ...
Gr.11 - Rational functions graphing. - 1. Identify a rational function whose ...
math - hello, i have some question about rational functions. 1) are there any ...
****college algebra…radical functions**** - Create a rational function such that...
Pre-Calculus - I want to learn how to find the domain, holes, x-intercepts, y- ...
Math - Domain and Asymptotes - Given the following rational function: f(x) = (x^...
College Algebra HELP - Use the seven step method described in the book to graph ...
Math Rational Functions-Please Clarify =) - I have a question about the rational...

Search
Members