Question 1014425: In 1998, there were 41,175 shopping centers in a certain country. In 2008, there were 48 comma 48,723.
(a) Write an equation expressing the number y of shopping centers in terms of the number x of years after 1998.
(b) When will the number of shopping centers reach 60,000?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In 1998, there were 41,175 shopping centers in a certain country. In 2008, there were 48 comma 48,723.
-----
slope = (48,723-41175)/(2008-1998) = 7548/10 = 754.8
----------
intercept = f(1998) = 41175
-------------------------------
(a) Write an equation expressing the number y of shopping centers in terms of the number x of years after 1998.
f(x) = 754.8x + 41,175
-------
(b) When will the number of shopping centers reach 60,000?
Solve::
60,000 = 754.8x + 41.175
754.8x = 18825
----
x = 24.94
-----
Ans:: 1998 + 24.94 = 2023 when rounded up
----------------
Cheers,
Stan H.
-------------
|
|
|
