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Line segment AB is drawn between point A(-3, 3) and point B(-1, -1). Work out the gradient of the line segment AB, then find the equation of the graph.

The gradient of segment AB is given by the change in x, over the change in y.m = dy/dx = (y2 -y1)/(x2-x1)y2 = 1y1 = 3x2 = -1x1 = -3m = (-1 - 3)/(-1 -(-3)) = -4/2 = -2Gradient is -2.
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Answered by Shahan A. • Maths tutor
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How do you find the length of the diagonal of a rectangle of 5cm by 12cm?

Draw the rectangle and put on the measurements Draw on the diagonal Find the right angled triangle Pythagoras tells us a 2 +b 2 =c 2 where c is the longest side which is what we are trying to find So 12 2 +5...
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Answered by Matthew S. • Maths tutor
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What sort of features should I look out for when analysing a text?

When analysing a text, there are some good features to look out for in order to make sure that you are spotting any implicit meanings. Features such as similes and metaphors are great to look out for, as the...
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Answered by Katie G. • English tutor
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Explain two differences between procedural and episodic memory

Procedural memories are subjected to the unconscious mind and can not be explained verbally (non-declarative) they are concerned with how to do something and not with the rules of what to do; whereas episodi...
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Answered by Jack C. • Psychology tutor
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briefly outline and evaluate one research study into the evolutionary causes of aggression (4 marks)

In a 1988 study, Daly and Wilson propose that marital aggression can be explained as an adaptive response. They suggest that the evolutionary desire to ensure the propagation of one's own DNA has resulted in...
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Answered by Sadia Q. • Psychology tutor
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