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The point P has coordinates (3, 4) The point Q has coordinates (a, b) A line perpendicular to PQ is given by the equation 3x + 2y = 7 Find an expression for b in terms of a.

The first step should be to rearrange the equation of the perpendicular line to PQ, in order to find the gradient, which works out to -3/2x. This can be done using the equation y=mx+c, where m is the gradien...
MD
Answered by M D. • Maths tutor
8657 Views

How should I structure an essay?

The most effective way to structure an essay is to use PEEL . Point, Evidence, Explain and Link. Firstly, you want to consider the main point of your argument. Consider what the question is asking you, break...
TD
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How should I start my portfolio?

Each portfolio must be showing development backed up with explanations for a final outcome. You should start off with 6-7 artists which will be part of the possible starting points and ideas you enjoy relate...
IZ
Answered by Irene Z. • Art tutor
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What is cuberoot(64x1000)?

This is a question from a non calculator GCSE paper only answered correctly by roughly half the students. The question is regarding the topic of surds and is quite a basic question testing your knowledge on ...
AJ
Answered by Avik J. • Maths tutor
5225 Views

Factorise the expression x^2+5x-24.

Using the general form of a quadratic equation ax 2 +bx+c, we known that ax 2 +bx+c=(x+d)(x+e).The constant term, c, must be equal to the product of our two constants in the factorisation, therefore c=d x e....
LC
Answered by Louis C. • Maths tutor
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