Top answers

How do I know when a quadratic function crosses the y-axis?

The key thing to remember here is that the y-axis is a straight line and all of the points that lie on it have the x-value of 0. This means that the curve crosses the y-axis when x=0 so you can substitute th...
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Answered by Scott R. • Maths tutor
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What is the difference between por y para?

Para 1) 'in order to' + infinitive. EXAMPLE: Voy a la biblioteca para leer un libro (I go to the library in order to read a book) 2) destination EXAMPLE: Durante las vacaciones, voy a ir para Valencia. 3) fo...
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Answered by Kate N. • Spanish tutor
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What is a gene?

A gene is a section of DNA that codes for a specific protein.
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Answered by Bethany C. • Biology tutor
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What is the difference between aerobic and anaerobic respiration?

Aerobic respiration takes place when oxygen is present, whereas anaerobic respiration takes place when oxygen is absent. Both processes take place in the mitochondria within the cells and releases energy.
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Answered by Bethany C. • Biology tutor
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How do I write a model essay?

The most important aspect of essay writing in a Psychology exam is to be able to critically evaluate. This means weighing up the strengths and weaknesses of the Psychological theory or concept you have just ...
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Answered by Saara P. • Psychology tutor
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