Question

anyone know how to solve operations with rational expressions?

Answer 1

I am pretty sure I know, I will help if anyone else doesn't do so before me, and especially if you post a specific question (if any).
Good luck...!

Answer 2

I don't have any specific question. its cause i need to know this for a dba and i dont know it. if you cangive me some example and explain t to me it would help me a lot

Answer 3

its hard to give an entire lesson if you don't have any prior knowledge to it but

Answer 4

simply put:

addition/subtraction: rationalize denominator so that they have like denominators

multiplication: multiply like normal

divide: switch the second fraction (reciprocal) and multiply.

Answer 5

if you can look online for some practice problems, and run into one you don't know..i can help.

Answer 6

oh i think i understand...

Answer 7

it's kind of tricky. look up some problems i'd advise.

Answer 8

i will. but i think you cleared up my questions with your explanation thank you!

Answer 9

if i need anything can i tag you?

Answer 10

sure.

Answer 11

@dtan5457 can you help me with this: Identify the vertical asymptote of f(x)=4x+3

Answer 12

correct me if i'm wrong but that's a line that never stops. there should not be a vertical asymptote..

Answer 13

@Nnesha

Answer 14

and how would you find a horizontal asymptome? @dtan5457

Answer 15

there isn't one. that is a linear equation which all of domain and range is a possibility.

an asymptote is a y or x value that the graph never touches

Answer 16

thanks. another question is (im not sure if its right), how to find the y of a polynomial
@dtan5457

Answer 17

not sure what you mean by y. y intercept?

Answer 18

yes

Answer 19

and the x intercept too

Answer 20

oh wait. its how to find the x interept of a function

Answer 21

got it: To find the y-intercept(s) (the point where the graph crosses the y-axis), substitute in 0 for x and solve for y or f(x). To find the x-intercept(s) (the point where the graph crosses the x-axis – also known as zeros), substitute in 0 for y and solve for x.

Answer 22

how do you find the zeroes of a polynomial? @dtan5457

Answer 23

ex: f(x)=2x^4–10x^2+5x–12.

Answer 24

https://www.youtube.com/watch?v=rP-__zFngio

that will explain it faster and more efficiently than i ever could. it's a long process.