Top answers

Maths
All levels

Rationalise the complex fraction: (8 + 6i)/(6 - 2i)

The problem with this fraction is the "i" on the denominator, it is not rational. To rationalise this fraction we use the complex conjugate.

This sounds more co...

HC
Answered by Harry C. Maths tutor
9797 Views

Find the maximum or minimum value of the function: y = 6x^2 + 4x + 2

The easiest way to solve this problem is by using differentiation.

dy/dx = (6x^2 + 4x + 2)/dx

dy/dx = 62x^1 + 41x^0 + 0

dy/d...

HC
Answered by Harry C. Maths tutor
10837 Views

What's the difference between a histogram and a bar chart?

A bar-chart is a graph where the height of the bar measures the frequency of a particular category which that bar represents.

For a histogram, however, t...

CM
Answered by Colm M. Maths tutor
12020 Views

What are "x" and "y" and why are they used?

The letters "x" and "y", or any other similar letter in an equation, are examples of unknown variables

What this means is that we don't know their v...

CM
Answered by Colm M. Maths tutor
7227 Views

How do I find the distance between two point in the plane?

We can use Pythagoras' Theorem applied to co-ordinates of these points.

JV
Answered by Jonathon V. Maths tutor
4325 Views

We're here to help

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

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning