Fog, the

Rated X (2000) IMDB rating: 5.70 Plot: Based on the true story of Jim and Artie Mitchell, two brothers who entered the porn industry in the early 60’s. After creating such legendary porn films as “Behind the Green Door” and “Inside Marily Chambers”, they later became addicted to drugs and began a downward spiral leading to bankruptcy and murder.

Actors: Sheen Charlie,Estevez Emilio,Blake Geoffrey,Weigel Rafer,O’Quinn Terry,McFadyen Dylan,Estevez Taylor,Cabral Eric,Clark Robert,Drama,

Find the rate of change of this percentage in the year 2004 and interpret your answer?
(x) = 1/2x^2 + 4x + 1, where x is the number of years after the year 2000

what is happening to the number each year?

thank you

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I guess you missed an "f" when typing "(x)"?
f(x) = ?x? + 4x + 1

The rate of change can be found via the derivative f ‘(x):
f ‘(x) = x + 4

For 2004, x = 4:
f ‘(4) = 8
so that is the rate of change in 2004.

This means that the percentage is increasing at the start of that year with a speed of 8%/year.

The percentage (number) is increasing every year, and the speed of increase also increases.
Timo | Feb 01, 2010