SOLUTION: The function S = 500 + 200X and D = 9500 - 100X express the supply S and the demand D, respectively, for a popular compact disc brand as a function of its price x (in dollars.
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Question 145264This question is from textbook Elementary and Intermediate Algebra
: The function S = 500 + 200X and D = 9500 - 100X express the supply S and the demand D, respectively, for a popular compact disc brand as a function of its price x (in dollars.
A) Graph the functions on the same coordinate system.
This question is from textbook Elementary and Intermediate Algebra
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
he function S = 500 + 200X and D = 9500 - 100X express the supply S and the demand D, respectively, for a popular compact disc brand as a function of its price x (in dollars.
A) Graph the functions on the same coordinate system.
Plot both equations; you can use x=10, x=50; find y for each as follows:
:
y = 500+200x (Purple)
x | y
-------
10 | 2500
50 | 10500
:
y = 9500-100x (Green)
x | y
-------
10 |8500
50 |4500
:
:
you can see that D = S at x = 30, y = 6500
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