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What does it mean to differentiate a function?

A function represents a quantity. For example the function s = (6t 2 + 4t) m, could represent displacement. The unknown t is inputted to find the displacement an object travels at a certain time. The differe...
NJ
Answered by Neha J. • Maths tutor
6055 Views

What factors cause the aggregate demand curve to shift?

The equation for aggregate demand is defined as C+I+G+(X-M) where C is consumption by households on things such as cars, furniture and petrol, I is investment by firms in new technology, factories and invent...
JH
Answered by Jake H. • Economics tutor
12977 Views

What is Pareto efficiency?

A situation, allocation or outcome is Pareto efficient if no one party can be made better off without another being made worse off. The outcome of a perfectly competitive market is Pareto efficient whereas t...
JH
Answered by Jake H. • Economics tutor
35828 Views

How do you differentiate x^x?

There are two ways we can find the derivative of x^x. It's important to notice that this function is neither a power function of the form x^k nor an exponential function of the form b^x, so we can't use the ...
AK
Answered by Alina K. • Maths tutor
411699 Views

How do I solve simultaneous equations?

Always follow the same three steps : equating – substracting – substituting but you can have different cases : Case 1 : we only need to multiply one equation Example: 2x+5y=9 6x-4y=8 Note : Always check firs...
RZ
Answered by Roxane Z. • Maths tutor
5634 Views