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Question

anonymous · Answer

The following function shows the relationship between the selling prices and profit P(s), in dollars, for a company; 
P(s) -20s^2 + 1,400 - 12,000

anonymous · Answer

Which statement best describes the intervals where he company profit increases, decreased or records a maximum?

iyuko · Answer

s is the independent variable. Negative a means the parabola opens down. The vertex is at:

s = -b/(2a) = -1400 / -40 = 35

Since the parabola open downward P(s) is a maximum at s=35 

From left to right the function increases to that maximum at s=35 then decreases after so it increases from 10 to 35 and decreases from 35 to 100

iyuko · Answer

@lolbug Give me answer options And I'll tell you.

iyuko · Answer

s=35 is the maximum.

anonymous · Answer

A; it is least when the selling price is $30
B: it is greatest when the selling price is 30
C: it decreases when the selling price increases from $10 to $35
D: it increases when the selling price increases from $10 to $35

anonymous · Answer

@iYuko

iyuko · Answer

It is greatest when the selling price is $35.

anonymous · Answer

So D?

iyuko · Answer

It is greatest when the selling price is $30.

iyuko · Answer

sorry. :)

anonymous · Answer

B?

maddie82502 · Answer

yea its b

iyuko · Answer

What one is It is greatest when the selling price is $35? I don't have to tell you that do I?

iyuko · Answer

Please click best response -----------------------------------^^^^^^^^^