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A is the point with coordinates (5, 9) B is the point with coordinates (d, 15) The gradient of the line AB is 3 Work out the value of d.

A straight line equation is defined as y=mx+c where m is the gradient and c is the intercept. Since the gradient is already said to be 3 we can substitute this in to mean the equation for AB is y=3x+c. Si...

Answered by Tarun A. • Maths tutor

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Block 1 is 24mm long. Block 2 is 32mm long. Vignesh joins some type 1 blocks together to make a straight row. He then joins some type 2 blocks together to make a straight row of the same length. (a) Write down the shortest possible length of this row.

96mm (a) Express 24 and 32 as prime numbers (explained in interview)(b) Use this to find the LCM (lowest common multiple) (c) Don't forget units!

Answered by Vera O. • Maths tutor

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Factorise x^2 +6x + 8

Firstly list two numbers that add to 6 and right them down e.g. 4 and 2.Secondly list two numbers that multiply to form 8 e.g. 8 and 1 or 4 and 2.The numbers that appear in both solutions will therefore b...

Answered by Euan M. • Maths tutor

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Refer to question taken from Edexcel Maths Paper

Refer to question taken from Edexcel Maths Paper.

Answered by Angus B. • Maths tutor

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How do you solve a quadratic equarion

with quadratic equations you will either get two x values for your answer, one value or zero values. This can be tested by rhe value of your discriminant when values have been subbed in. If it’s greater t...

Answered by Henry B. • Maths tutor

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