MYTUTOR SUBJECT ANSWERS

363 views

Whats the inverse of y = 2x+1/x-1 ?

To find the inverse we're wanting to make x the subject. First start by multiplying both sides by (x-1), this gives us y(x-1) = 2x+1. 

Expand the brackets giving yx - y = 2x+1. 

Gather all the x components onto the same side:

yx - 2x = 1+y

now factorise the left hand side:

x(y-2) = 1+y

and make x the subject|:

x = 1+y/y-2

therefore the solution of the inverse is

f(x)^-1 = 1+x/ x-2

Amelia S. GCSE Maths tutor, A Level Maths tutor, GCSE Further Mathema...

1 year ago

Answered by Amelia, a GCSE Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

322 SUBJECT SPECIALISTS

£18 /hr

King Him C.

Degree: Computer Science (Masters) - Durham University

Subjects offered: Maths, Chemistry

Maths
Chemistry

“Hello there! I am a Computer Science undergraduate studying at Durham University. I am very enthusiastic about the understanding of scientific concepts and also the core ideas and building blocks of subjects. I have been tutoring duri...”

£22 /hr

Raj K.

Degree: Medicine (Bachelors) - Liverpool University

Subjects offered: Maths, Science+ 6 more

Maths
Science
Physics
French
Chemistry
Biology
-Personal Statements-
-Medical School Preparation-

“About Me: I am a medical student at The University of Liverpool and have already completed a degree in Biochemistry at the University of Manchester. Hopefully, it goes without saying that it is clear that I love science and am hugely ...”

£18 /hr

Angus S.

Degree: Cognitive Science (BSc Hons) (Bachelors) - Edinburgh University

Subjects offered: Maths

Maths

“Hello! My name is Angus and I'm 19 years old. Currently, I'm a first year Informatics student at the University of Edinburgh. I spent part of a year after school travelling and teaching English as a foreign language, although Maths wa...”

MyTutor guarantee

About the author

Amelia S.

Currently unavailable: for regular students

Degree: Mathematics, Business and Finance (Masters) - Exeter University

Subjects offered: Maths, Further Mathematics

Maths
Further Mathematics

“About me:Hi there, my name's Amelia Smith and I'm currently at the University of Exeter studying Maths, Business and Finance. We all know how boring revising for exams can be, that's why I like to take a hands on fun approach that ke...”

You may also like...

Posts by Amelia

Describe a test to show that olive oil contains unsaturated compounds. Give the result of the test.

Explain why the National Grid includes step-up transformers.

Find the inverse of y = 2x+1/ x-1

Give a reason why sulfur dioxide and nitrogen oxides are produced in petrol engines.

Other GCSE Maths questions

How do I factorise x^2 + 8x + 15?

Solve the equation 3x squared + 4x – 12 = 0 Give your solutions correct to 2 decimal places.

Find the highest common factor (HCF) of 12 and 18.

Differentiate f(x) = 3x^2+5x+3

View GCSE Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok