Top answers

How do I solve simultaneous equations that aren't linear, for example x^2 + 2y = 9, y = x + 3

First, let's start by labelling the equations. We can call x 2 +2y=9 equation 1 and y=x+3 equation 2. Rearrange equation 2 to give us x = y-3. We can then substitute this back into equation 1. So we get (y-3...
EM
Answered by Esther M. • Maths tutor
2731 Views

Which factors affect supply and demand?

Factors affecting Supply:-Exchange Rates if it is an international business-Price of commodity-Government policies, e.g. taxation Factors affecting Demand:-Consumer taste-Consumer income-Changes in price of ...
AK
Answered by Aneeq K. • Economics tutor
2667 Views

Explain how we can increase the rate of a chemical reaction.(6 marks)

-Increase the concentration (pressure in gases). (1) This increases the likelihood and frequency of collision because the particles of reactant will be closer together (1)-Increase the temperature(1). This i...
AO
2644 Views

What does the conch shell symbolise in William Goulding's 'Lord of the Flies'?

The conch shell is an important symbol in William Goulding's novel, 'Lord of the Flies', as it is used at the start of the novel, when Ralph and Piggy attempt to create some structure into their new lives on...
CA
Answered by Charlotte A. • English tutor
2580 Views

If f(x) = x^2, draw the graph of y = f(x) + 3

We can first draw the graph of y = f(x) = x^2 which is a simple graph like this (whiteboard). Now looking at y = f(x) + 3, we can see that this is a translation by the vector [0 3]. Therefore we can translat...
MS
Answered by Maisie S. • Maths tutor
3681 Views