Arithmetic or Geometric?
-4, 2, -1, 1/2
This is a Geometric sequence
Common ratio: -1/2
The Common Difference of -20, -23, -26, -29...
What is -3?
Write an equation for the nth term of the geometric sequences.
3, 15, 75, 375, 1875, ...
f(n) = .6*5n
Write an equation for the nth term of the arithmetic sequences.
1, 4, 7, 10, 13, ...
f(n) = 3n -2
2 1/2 , 3, 3 1/2, 4, 4 1/2...
What is Arithmetic?
The Common Ratio of the Sequence 2, 4, 8, 16, 32...
What is 2 ?
Write an equation for the nth term of the geometric sequences.
324, 108, 36, 12, 4, ...
f(n) = 972(1/3)n
Write an equation for the nth term of the arithmetic sequences.
3, 8, 13, 18, 23, ...
f(n) = 5n -2
2, 4, 6, 8...
What is Arithmetic?
The Common Difference of 18, 22, 26, 30...
What is 4?
Write an equation for the nth term of the geometric sequences.
1, -2, 4, -8, 16, ....
f(n)= -.5*(-2)n
Write an equation for the nth term of the arithmetic sequences.
-8, -2, 4, 10, 16, ...
f(n) = 6n - 14
The Common Ratio of the Sequence 3, 9, 27, 81...
What is 3?
Write an equation for the nth term of the geometric sequences. Then find the 8th term
3, 6, 12, 24, ...
f(n)= 1.5*(2)n
f(8)= 384
Write an equation for the nth term of the arithmetic sequences. Then find the 7th term.
-6, 1, 8, 15, 22, ...
f(n) = 7n - 13
f(7) = 36
The sequence -5, -10, -15, -20
What is what is arithmetic?
The Common Ratio of the Sequence 1000, 200, 40, 8...
What is 1/5 or 0.2?
Write an equation for the nth term of the geometric sequences. Then find the 10th term
128, 64, 32, 16, 8, ...
f(n)= 256(1/2)n
f(10)= 0.25
Write an equation for the nth term of the arithmetic sequences. Find the 10th term
11, 4, -3, -10, -17, -24, ...
f(n) = -7n+18
f(10) = -52