6ab - 8ab
-2ab
(8.6x10-4) + (6.7x10-5)
9.27x10-4
The population of the city is 422,000 and increases by 12% each year. Use an exponential function to find the population of the city after 8 years.
y=a(1+r)t
1,044,856 people
w7 x w-9
1/w2
2, 10, 50, 250, ...
r= 5
-2xy2 - 4xy + 6xy2
4xy2 - 4xy
(3.5x103) - (9x101)
3.41x103
A car bought for $13,000 goes down 15% per year. Use an exponential function to find the value of the car after 5 years.
y=a(1-r)t
$5,768.17
6x-8 x -3x-3
-18/x11
80, -40 ,20 ,-10, ...
r= -2
-7n-4 x 5n-2
-35n-6
(5.6x104) x (4.5x106)
2.52x1010
Roger purchased a painting in 2006 for $1,250. Since then, its value has increased by 6% each year. Use an exponential function to find the value of the painting in 2017.
y=a(1+r)t
$2,372.87
(5y2)-3
1/115y5
135, 45, 15, 5, ...
r= 1/3
(5v4)2 x 2v3 x v
50v12
6.76x10-8
In 2000 Florida's population was 16 million. Since 2000, the state's population has grown about 2% each year. This means that Florida's population is growing exponentially. Find Florida's population in 2006.
18,018,598 people
(8p5)-2
1/64p10
7, -14, 28, -56, ...
r= -2
(-a6b)2 + 9a12b2
10a12b2
(3.9x10-12) / (4x104)
9.75x10-17
The original value of an investment is $1,400 and the value increases by 9% each year. use an exponential growth function to find the value of the investment after 25 years.
y=a(1+r)t
$12,072.31
(a-5b8c-12)(a7b-3c7)
a2b5/c5
-9, -36, -144, -576, ...
r= 4