The rise of digital video and the improvement to the DVD format are some of the reasons why the average selling price of stand-alone DVD recorders has dropped in recent years. The functionA(t) = 699(t + 1)0.94 (0 ≤ t ≤ 13)gives the projected average selling price (in dollars) of stand-alone DVD recorders in year t, where t = 0 corresponds to the beginning of 2002.† (Round your answers to the nearest cent.)How fast was the average selling price of stand-alone DVD recorders falling at the beginning of 2002?

Answer :

TomShelby

Answer:

A'(0) = 657.06

Explanation:

[tex]A_{(t)} =699(t+1)^{0.94}[/tex]

To know the fall in prices on 2002 we need to calculate A't

to derivate a power, the current value the power multiplies and we subtract one from it:

As the base is a funtion we need to derivate  that as well:

dt(t+1) = 1

[tex]A_{(t)} =699(0.94)\times (t+1)^{0.94 - 1} \times dt(t+1)[/tex]

[tex]A_{(t)} =657.06\times (t+1)^{-0.06} \times 1[/tex]

[tex]\frac{657.06}{(t+1)^{0.06}}[/tex]

Know we calculate for t = 0

[tex]\frac{657.06}{(0+1)^{0.06}}[/tex]

A'(0) = 657.06

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