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Using implicit differentiation, write the expression "3y^2 = 4x^3 + x" in terms of "dy/dx"

To differentiate this expression with respect to "x", any terms comprising of an "x" must multiply their powers with their numerical values and subtract 1 from the power. However to diffe...
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Answered by Brendan W. • Maths tutor
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Explain why a transformer only works with an alternating current and doesn't with a direct current.

A transformer is designed to step-up or step-down a voltage in a wire to make transferring electricity more efficient. To do this they contain two isolated coiled wires (of varied lengths depending on the tr...
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Answered by Brendan W. • Physics tutor
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Define Newtons law of Gravitation (in words or an equation).

Newtons law of gravitation can be described as: The force experienced by a body proportional to the product of the two masses the interaction is between, the gravitational constant 6.67x10 -11 , and the inve...
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Answered by Brendan W. • Physics tutor
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Compare and contrast competitive and non-competitive enzymes inhibitors

Both competitive and non-competitive inhibitors interfere with the functioning of the enzyme's active site, reducing the number of enzyme-substrate complexes that can form. Competitive inhibitors have a shap...
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Answered by Georgia T. • Biology tutor
40323 Views

Given a quadratic equation, how do I find the coordinates of the stationary point?

Example curve: y = x 2 + 4x + 5The first step is to differentiate the equation to give us the gradient at a general point. As a quadratic equation is an example of a polynomial, the solution is as follows:dy...
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Answered by Daniel G. • Maths tutor
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