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Photon Lighting Company determines that the supply and demand functions for its most popular lamp are as follows: S(p) = 400 - 4p + 0.00002p4 and D(p) = 2,800 - 0.0012p3, where p is the price. Determine the price for which the supply equals the demand.

Verified Answer :

S(p)=D(p)
400-4p+0.00002p4=2,800-0.0012p3
Solve for p
P=96.24

Answer:

When the price is approximately $92.35, the demand and supply are equal.

Step-by-step explanation:

The given functions are

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Where @@MATH_TOKEN_1@@ represents the supply, @@MATH_TOKEN_2@@ represents the demand and @@MATH_TOKEN_3@@ the price.

So, to determine the price for which the supply equals the demand, we just need to use the given functions as,

@@MATH_TOKEN_4@@

Then, we solve for @@MATH_TOKEN_5@@

@@MATH_TOKEN_6@@

So, using a calculator, we have

@@MATH_TOKEN_7@@

However, only the positive solution make sense to this problem, because we are looking for the price.

Therefore, when the price is approximately $92.35, the demand and supply are equal.