SOLUTION: Hello, I need some help graphing supply and demand equations. Supply curve - P = $10 + $0.25Qs Demand curve = P = $85 - $0.5Qd I have calculated the equilibrium quantity at Q =

Algebra ->  Graphs -> SOLUTION: Hello, I need some help graphing supply and demand equations. Supply curve - P = $10 + $0.25Qs Demand curve = P = $85 - $0.5Qd I have calculated the equilibrium quantity at Q =      Log On


   

Question 731199: Hello,
I need some help graphing supply and demand equations.
Supply curve - P = $10 + $0.25Qs
Demand curve = P = $85 - $0.5Qd
I have calculated the equilibrium quantity at Q =100.
Can any one give me a hint on how to find the coordinates for the graph?(supply and demand curves from the equations above)
I will be grateful for any help.
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I need some help graphing supply and demand equations.
Supply curve - P = $10 + $0.25Qs
Demand curve = P = $85 - $0.5Qd
I have calculated the equilibrium quantity at Q =100.
Can any one give me a hint on how to find the coordinates for the graph?(supply and demand curves from the equations above)
-----
S(x) = 10 + 0.25x
If x = 4, y = 11
If x = 8, y = 12
-------------------------
D(x) = 85 - 0.50x
If x = 4, y = 83
If x = 8, y = 81
-------------------------
graph%28400%2C400%2C-10%2C125%2C-10%2C125%2C10%2B0.25x%2C85-0.50x%29
---------------------------
Cheers,
Stan H.
===========================

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Plot +Q+ on the horizontal axis, and
plot +P+ for both supply and demand
on the vertical axis.
They are straight lines. You can write them as:
+P+=+%281%2F4%29%2AQ+%2B+10+ ( supply )
+P+=+%28-1%2F2%29%2AQ+%2B+85+ ( demand )
---------------------
Here are the plots:

Note that
+P%280%29+=+%281%2F4%29%2A0+%2B+10+ ( supply )
+P%280%29+=+%28-1%2F2%29%2A0+%2B+85+ ( demand )