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?
Deduct 100 points from your score for every person that has a BLUE shirt on in the class.
Womp Womp.
Write an equation for the nth term of the geometric sequences.
3, 15, 75, 375, 1875, ...
an = 3*5n-1
Write an equation for the nth term of the arithmetic sequences.
1, 4, 7, 10, 13, ...
an = 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 ?
Add 100 points to your score for every person in the class that is wearing glasses.
Congrats!
Write an equation for the nth term of the geometric sequences.
324, 108, 36, 12, 4, ...
an) = 324 * (1/3
Write an equation for the nth term of the arithmetic sequences.
3, 8, 13, 18, 23, ...
an = 5n-2
DAILY DOUBLE!
2, 4, 6, 8...
What is Arithmetic?
The Common Difference of 18, 22, 26, 30...
What is 4?
Double it and give it to the next person! You don't lose any points, but you have to donate a total of 600 points to other teams.
Congrats!
Write an equation for the nth term of the geometric sequences.
1, -2, 4, -8, 16, ....
an=1 * (-2)n-1
Write an equation for the nth term of the arithmetic sequences.
-8, -2, 4, 10, 16, ...
an = 6n-14
DAILY DOUBLE!
The Common Ratio of the Sequence 3, 9, 27, 81...
What is 3?
The points for this question (400) will be subtracted from your total.
Yikes.
DAILY DOUBLE!
Write an equation for the nth term of the geometric sequences. Then find the 8th term
3, 6, 12, 24, ...
an= 3*(2)n-1
a8= 384
Write an equation for the nth term of the arithmetic sequences. Then find the 7th term.
-6, 1, 8, 15, 22, ...
an = 7n-13
a7 = 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?
Oh no....
You lose the amount of points for this question, but you must ALSO give away TRIPLE the points to other teams.
Oh well.
Write an equation for the nth term of the geometric sequences. Then find the 10th term
128, 64, 32, 16, 8, ...
an= 128(1/2)n-1
a10= 0.25
DAILY DOUBLE!
Write an equation for the nth term of the arithmetic sequences. Find the 10th term
11, 4, -3, -10, -17, -24, ...
an = -7n+18
a10 = -52