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How do I calculate where a function is increasing/decreasing?

This depends entirely on the gradient of the function, which is calculated as (dy/dx). At (dy/dx)= 0, the function is neither increasing nor decreasing, since the gradient is zero. The max number of stationa...
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Answered by Steve H. • Maths tutor
9654 Views

y=mx+c. If m=5, x= -3 and c=1, find y

First off multiply m and x together. This is -3*5 = -15. Next, add c to the previous result, so -15+1=-14. This gives y=-14
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Answered by Kamaal K. • Maths tutor
3576 Views

Prove or disprove the following statement: ‘No cube of an integer has 2 as its units digit.’

This is a very standard proof question for the C3 exam. The first thing that I would do when I see wordy proof statements like this is to make sure I understand what it means. Maybe writing out the statement...
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Answered by Thomas D. • Maths tutor
7068 Views

Quels sont les sujets des disputes entre les parents et leurs enfants ? A votre avis, qu’est-ce qu’il faut faire pour avoir une vie familiale harmonieuse ?

Remember that the written questions for French unit 1 are always on a topic that you have studied in class. In this case, it is about family relationships. The question is marked out of 35, with content bein...
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Answered by Tutor19405 D. • French tutor
2571 Views

Can you explain what the stages of a reflex action are; for example what actually happens when you touch a hot object?

Firstly, the whole point of a reflex is to create a QUICK reaction to a STIMULUS. So, the first stage of a reflex is SENSATION - i.e when you first touch the hot object the receptors in the skin will sense t...
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Answered by Kinari P. • Biology tutor
11626 Views