Mathematics, 31.03.2021 16:30 larey

4 A photographer has 600 photos of a celebrity event available for the event organizer to purchase. He sells the photo files for $10 each.
a Find the amount of revenue generated from photo file sales if the photographer sells all
600 files.
Research has shown the photographer he will sell all 600 photo files at $10 each and that for
each $0.50 increase per photo file, he will sell 10 fewer photo files. Suppose there have been x
increases of $0.50 in the price of a photo file.
b Find an expression for the price of a photo file in terms of x.
C Find an expression in terms of x for the number of photo files purchased.
d Find an expression in terms of x for the revenue generated by photo file sales.
e Find the revenue generated when the photo files are sold for $14 each.
f Find the photo file price that maximizes revenue and the maximum revenue.

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