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Mathematics 31 Online
OpenStudy (anonymous):

The demand for your college newspaper is 9,000 copies each week if the paper is given away free of charge, and drops to 8,000 each week if the charge is 10¢/copy. However, the university is prepared to supply only 600 copies per week free of charge, but will supply 1,400 each week at 20¢ per copy. Write down the associated linear demand and supply functions

OpenStudy (anonymous):

if someone wants medal tell me how because i dont have any idea how to...

OpenStudy (amistre64):

you are given two points for the demand; they are 0,9000 and 10,8000

OpenStudy (amistre64):

D(x) = -100x +9000

OpenStudy (amistre64):

you are given two points for the supply as well right?

OpenStudy (amistre64):

0,600 and 20,1400

OpenStudy (anonymous):

yeah but at $.20

OpenStudy (amistre64):

S(x) = 400x+600

OpenStudy (anonymous):

they are two the demand and the supply functions that I need to do

OpenStudy (amistre64):

40x that is

OpenStudy (amistre64):

yes; the demand is a function of the 2 points given; find the slope and y intercept same with the supply

OpenStudy (anonymous):

amistre come on chat

OpenStudy (amistre64):

in a min :)

OpenStudy (amistre64):

Demand = -100x +9000 Supply = 40x+600

OpenStudy (amistre64):

x is in cents

OpenStudy (anonymous):

ooh ok ok

OpenStudy (anonymous):

ooooh i get it wow. easier thnx!!! ;D

OpenStudy (amistre64):

at what point does supply equal demand?

OpenStudy (amistre64):

you might wanna adjust that for a decimal ..... i just did it for cents straight out the box

OpenStudy (anonymous):

ok dont worry i know the last step but couldt remember how to plug in the demand and supply thnx

OpenStudy (anonymous):

come on chat amistre

OpenStudy (amistre64):

youre welcome :)

OpenStudy (anonymous):

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