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44 votes
How Do I solve this I am quite confused

How Do I solve this I am quite confused-example-1
User Cjrieck
by
3.0k points

1 Answer

22 votes
22 votes

Answer:

$11,714

Explanation:

C(x) = 0.7x² - 462x + 87,944

this is a quadratic equation that opens up

the vertex will be the minimum

From the quadratic formula the x coordinate of the vertex is

x = -b/2a

x = 462/(2 * 0.7)

x = 330

Plug in

c(330) = 0.7(330²) - 462(330) + 87,944

c(330) = 11,714

$11,714

User FutureCake
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2.9k points