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How do I draw a straight line graph given a y=mx+c equation by the table method?

The y=mx+c equation is for a straight line (also known as 'linear') graph. The ' y' is representative of the y-value, 'm' represents the gradient (how steep the graph is) and 'c' represents the y-intercept (...
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Answered by Neha C. • Maths tutor
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How do I solve a quadratic equation by completing the square?

The first step is to make sure that the coefficient of x^2 is 1 by dividing all terms by a (where a equals the coefficient of x^2). Then we must write the quadratic equation as a square plus another term. To...
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Answered by Gina J. • Maths tutor
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Why is sucrose digested faster than starch?

Sucrose is digested faster than starch because the process only has one step: sucrose is digested to glucose by sucrase. However, the digestion of starch has two steps: starch is digested to maltose by amyla...
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Answered by Xinyi Q. • Biology tutor
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When chlorine is bubbled through potassium bromide solution, the solution turns orange. Explain this.

This is because the reaction taking place is a displacement reaction , meaning that one element is being displaced by another. So what is being displaced?: If you look at the periodic table, chlorine is more...
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Answered by Leah B. • Chemistry tutor
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How do I find the half-life of radioactive isotope?

The half-life of a radioactive isotope is the time taken for half of the atoms in a given sample of the isotope to decay. Radioactivity is random and so, half-life is the average time taken for a large numbe...
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Answered by Joe S. • Physics tutor
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