75 Answered Questions for the topic Rational Functions

03/05/15

Add or subtract. Then simplify. If a denominator has three or more facotrs (Other then monomials.) Leave it in factored form.

Add or subtract. Then simplify. If a denominator has three or more facotrs (Other then monomials.) Leave it in factored form.   3y+2/y^2+5y-24  + 7/y^2+4y-32

03/05/15

Add or subtract. Then simplify. If a denominator has three or more facotrs (Other then monomials.) Leave it in factored form.

Add or subtract. Then simplify. If a denominator has three or more facotrs (Other then monomials.) Leave it in factored form.   y/y^2-y-20  + 2/y+4

01/29/15

idk how to do this

Leon begins with 72 milliliters of an 8% saline solution. He adds x milliliters of distilled water to the saline solution. a. What function represents salt concentration, C, of the new solution? b.... more

01/26/15

solve for x- rational equation

(3/(x=2))-1/(5x)=1/x

12/17/14

Domain and Range of a Rational Function

Using Wolfram Alpha, the following rational function (x^2-1)/(x+1) has domain of {x element of R : x not=to -1} and Range {y element of R : y not=to -2}.   I am confused about the Range.   To... more

11/25/14

Finding domain of a rational function

Find the domain of this rational function:   r(x) = (1302x-871)(1175x+1324)/(867x+1076)(1465x-832)

11/02/14

rational functions?

I am having trouble writing a function with the given conditions. It says to create a rational function with asymptotes at x=4 and y=2 and a domain of {x| x can't equal 4, x can't equal 9} I think... more

06/01/14

f(x)= 49x2-16 / 2x-6

find the domain of the rational function.

03/04/14

can you please tell me what i did wrong?

Find the zeroes if any of the rational function g(x)=x^3-125/x^2+1 TTHIS IS WHAT I DID g(x)=x^3-125/x^2+1       x^3-125=0        (x-5)(x^2+5x+25) Because x^2+1can not be factor  The zero of... more

02/25/14

May I have help with this?

If f(x)= (x^2-4)/(x-2), then which of the following is true?   a.) x= 2 is a vertical asymptote b.) can't be determined c.) y=1 is a vertical asymptote d) there are no vertical asymptotes e.)... more

02/25/14

Find the vertical asymptotes of f(x)= [x(x^2+1)]/(2x^2-3x-2)

How do you work this?

02/25/14

02/25/14

find the x-intercept of f(x)=(9x+7)/(x^2+5). Round your answer 2 decimal places.

Any help would be great.

02/25/14

May I get help with this?

Let f(x)= (7x^2+11x+7)/(-3-8x^2). The horizontal asymptote is given by y= ? Round your answer to 2 decimal places.

02/18/14

rational functions

How to simplify?   1  / 2(2x+5) + 3 ÷ 2/(x+9) + 1/4

02/18/14

rational functions

How to simplify?   1  / 2(2x+5) + 3 ÷ 2/(x+9) + 1/4

01/22/14

ratios fractions

Write the ratio as a fraction in simple form 35 out of 100?????? And 90:30 cant figure out these two answers

12/12/13

let A,B,C and D be the four rational zeros of the function defined by p(x)= 3x^4-8x^3-11x^2+28x-12 Compute (1+A)(1+B)(1+C)(1+D)

problem of the week final answer must be in the form of (1+A) (1+B) (1+C) (1+D) using the function p(x)= 3x^4-8x^3-11x^2+28x-12

12/02/13

find the vertical, horizonal, and oblique asymptotes, if any , for the following rational function.

Find the vertical, horizontal, and oblique asymtotes, if any , for the following rational function.  T(x)=x^3/x^4-81 ?

11/27/13

a question about the laffer curve

One real world application of a rational function is the Laffer Curve, as made famous by economist Arthur Laffer. According to Laffer, the elasticity of taxable income for the government changes in... more

10/12/13

Find the domain of the rational function please

Find the domain of the rational expression (Show all work)   R(x)= -7-6x/x^3-5x^2+6x

08/13/13

how to graph a rational function

the question is:  y=x+3/x-3

04/07/13

(4a^2+4a+1)/(4-9a^2)/(3a-2)/(4a^2+2a)

How to solve this rational function?

01/13/13

(3x+9/2x-6)•(4x+4/x+3)

write a simplified expression for the area of the rectangle. State all restrictions on x

12/08/12

what is the simplest form of 2-x/1-x/2

it is one of the questions im stuck on in my homework
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