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How do I find the roots and and coordinates of the vertex of the graph y = 2x^2 + 4x - 8 ?

y = 2x^2 + 4x - 8y = 2( x^2 + 2x - 4)Completing the square:y = 2( (x+1)^2 - 1 - 4 )y = 2(x+1)^2 -10the vertex of graph lies at the minimum value of y, and this occurs when x = -1:y = 2(-1+1)^2 -10y = -10ther...
JA
Answered by Joe A. • Maths tutor
7869 Views

I've been given London by William Blake to analyse for homework but I'm really struggling. There really aren't that many devices in it. My question is, how does William Blake present powerlessness in London?

You're right, there aren't that many devices in London. That's not a problem, though. Your question gives you a lot of help. You're looking for powerlessness and how it's presented. So let's find an example....
EK
11757 Views

How do I structure an essay?

Before you begin writing… Read widely around the question. Research the author/ playwright, historical/ political context and critical opinions on the text. This will give you an idea of your hypothesis* . W...
MJ
5367 Views

How to prepare for the Russian Revolution questions?

The first thing to keep in mind is that only the topics in the syllabus will be tested. Your essay question will be based around one, or a combination of the syllabus topics. For the Russian Revolution, that...
EK
Answered by Elina K. • History tutor
2170 Views

(ii) Describe and explain how the horizontal component of the water jet varies from point X to point Y. (2 marks)

(ii) Air resistance is said to be negligible in the question and since air resistance would be the only horizontal force acting on the jet, the horizontal force is also 0. (1 mark) This results in the horizo...
TC
Answered by Tate C. • Physics tutor
6533 Views