SOLUTION: In 1998, there were 92,000 personal computer sold. By 2005, this figure has increased to 220,000. Write an exponentional function in the form y=ab^x to model the number of personal

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: In 1998, there were 92,000 personal computer sold. By 2005, this figure has increased to 220,000. Write an exponentional function in the form y=ab^x to model the number of personal      Log On


   

Question 388254: In 1998, there were 92,000 personal computer sold. By 2005, this figure has increased to 220,000. Write an exponentional function in the form y=ab^x to model the number of personal computers sold.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the number of years since 1998.
So in 1998, x=0.
y=ab%5E0=92000
a=92000
.
.
.
In 2005, x=7.
y=92000b%5E7=220000
b%5E7=2.391304
b=1.1326
.
.
.
highlight%28y=92000%281.1326%29%5Ex%29, where x is the number of years since 1998.