MYTUTOR SUBJECT ANSWERS

423 views

Find the inverse of f(x) = 7x+4

To start make the equation equal y.

So y = 7x+4

Then rearrange the equation to make x the subject.

Subtract 4 from both sides: y-4 = 7x

Divide by 7: (y-4)/7 = x

Now write it in terms of x

f(x)^-1 = (x-4)/7

where f(x)^-1 means the inverse of f(x).

Joe S. A Level Computing tutor, GCSE ICT tutor, GCSE Maths tutor, GCS...

1 year ago

Answered by Joe, a GCSE Maths tutor with MyTutor


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

458 SUBJECT SPECIALISTS

£18 /hr

Ed W.

Degree: Medicine (Bachelors) - Edinburgh University

Subjects offered: Maths, Further Mathematics + 3 more

Maths
Further Mathematics
Chemistry
Biology
-Medical School Preparation-

“Hi! I'm Ed and I'm currently studying Medicine at the University of Edinburgh. I tutor at GCSE and A Level forBiology, Chemistry and Maths, and at GCSE level forFurther Maths. These are subjects I'm very comfortable in and enjoy. With ...”

£18 /hr

Eleanor S.

Degree: Physics (Masters) - Durham University

Subjects offered: Maths, Physics+ 2 more

Maths
Physics
Further Mathematics
French

“About Me: Hi, I'm Elle! Science, maths and languages have been my favourite subjects from a young age and studying them in further detail only made me love them more. I am soon to go into my second year of a physics degree at Durham ...”

£18 /hr

Karol B.

Degree: Biochemistry (Masters) - St. Andrews University

Subjects offered: Maths, Chemistry+ 2 more

Maths
Chemistry
Biology
-Personal Statements-

“I am a biochemistry student at the University of St Andrews. I have always had a great passion for tutoring in the sciences. One of my main career plans for the future is to become an international school teacher for IB Chemistry and ...”

About the author

£18 /hr

Joe S.

Degree: Computer Science (Bachelors) - Bristol University

Subjects offered: Maths, ICT+ 1 more

Maths
ICT
Computing

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Posts by Joe

Find the inverse of f(x) = 7x+4

What is a stable solution and what is dominance?

Other GCSE Maths questions

Simplify fully (x^2*x^3)/x^4

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

In triangle ABC, right angled at B, AB = 3 cm and AC = 6 cm. Determine angle BAC and angle ACB.

There are n sweets in a bag. 6 are Orange, the rest are Yellow. Hannah takes a sweet out of the bag, and eats it, she does this twice. The Probability of Hannah eating two orange sweets is 1/3. Show that n^2 - n - 90 =0, and solve to find the value of n.

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