Top answers

Maths
All levels

F(X)= 4/(x-3) g(x)= (x+2)/x solve fg(a)= 1

4/(x-3)*(x+2)/x= 4x+8/ x2 -3x
sub in a for x4a+8/a2-3athen equate to 1: 4a+8/a2-3a=1Times the bottom half of the equation up4a+8=a2-3aThe move the 4a+8 acr...

EJ
Answered by Esther J. Maths tutor
7906 Views

Complete the square and hence sketch the graph of f(x) = x^2 + 2x + 7

Consider (x + 1)^2, where we halved the coefficient of x to obtain 1. This gives us x^2 + 2x + 1, which looks similar to our function, except it differs by a constant value of 6, hence, by adding 6 to (x ...

JP
Answered by Jordan P. Maths tutor
3398 Views

If I am given a line, how do I find a line that is parallel to it? What about perpendicular?

The key fact here is to remember the relationship between the gradients of lines which are parallel and perpendicular. Two lines that are parallel will always have the same gradient. So if we have a line ...

HW
Answered by Harry W. Maths tutor
3980 Views

Differentiate y= 2^x

Initially this looks unlike all the other differentiation questions and seems unsolvable. However the expression 2^x can be rewritten in an equivalent form that will allow us to use the differentiation ru...

MG
Answered by Max G. Maths tutor
7642 Views

How to write an introduction for an essay in Russian

When writing an introduction for any essay, it is essential that you present your topic, state the problem, explain any terminology that you will be using and clarify what you attempt to achieve in your e...

BR
Answered by Benita R. Maths tutor
3515 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences