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How do you measure the gradient of a straight line joining two points?

There is a simple method for working out the gradient of a straight line joining any two points, for which the X and Y coordinates are known. For instance, if our first point is: A(X₁,Y₁

Answered by Alex T. • Maths tutor

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Why maths is so hard sometimes?

I have been struggling with maths when my teacher failed to teach me how to understand maths and only made me do the homework and tests. Maths is all about understanding the logic behind the calculations,...

Answered by Anna N. • Maths tutor

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How do you find the turning points of a curve described by the equation y(x)?

A turning point on a curve will be a point where the curve is flat/horizontal i.e. where it has a gradient of zero. We know that to find the equation for the gradient of a curve we have to differentiate i...

Answered by George F. • Maths tutor

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Particles P and Q of masses 0.4kg and m kg are joined by a light inextensible string over a smooth pulley. When released Q accelerates downward at 2.45ms^-2. Find m.

This is an example of a common Mechanics 1 question. I teach a systematic approach to such questions.

Diagram - dram diagram of the pulley set up
Label forces on diagra...

Answered by Connor N. • Maths tutor

7501 Views

Solve the following simultaneous equations: 3x + 5y = -4 and -2x + 3y = 9

Label the equations 1 and 2 We want to make it so the x are the same number - therefore we have to find a common multiple of 2 and 3 - this is 6 Therefore the equations turn into: 1) 6x + 10y = -8 2) -6x ...

Answered by Krishnaa P. • Maths tutor

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