Show that the curve y = 4x - x4 has only 1 stationary point. Determine the nature of this point.

Maximum

Step-by-step explanation:

dy/dx = 4 - 4x³ = 0

x³ = 1

x = 1

y = 4 - 1 = 3

There's only one stationary point: (1,3)

Nature:

d²y/dx² = -12x²

x = 1, so -12

Negative means it's maximum turning point

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

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step-by-step explanation:

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