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How can I find the area under the graph of y = f(x) between x = a and x = b?

You can find the area under this graph by evaluating the definite integral of y = f(x) with respe...

5118 Views

What is cost push inflation?

Cost push inflation is the result of an increase in the price of the factors of production e.g. labour, raw materials. For example, an increase in the pr...

Answered by Nick O. • Economics tutor

5646 Views

How do I find the equation of the normal line given a point on the curve?

The normal line to a curve at a particular point is the line through that point and perpendicular to the tangent.

A simple trick to remembering how to find the normal...

Answered by Joy M. • Maths tutor

78599 Views

What is solution by substitution?

Simultaneous equations - Solution by substitution

As the variables (x & y) are the same in both equations, we can substitute from one equation into ...

Answered by Antonia M. • Maths tutor

6332 Views

When do I use the conditional perfect tense in a "si" clause?

The conditional perfect tense should be used in a "si" clause when there is no possibility for the event to happen. It must also be used with the pluperfect tense. For example: If I had know...

Answered by Daniel A. • French tutor

3726 Views