### Arithmetic and Geometric Sequences Speed Match Review Game

This game has been played 2 times
The best time ever was Will at 264 seconds.
The best time today is at seconds.
How To Play:
Drag the squares in the gray area and drop them in the matching squares in the blue area below.
If you drop a square in the correct spot, it will disappear.
If you make a mistake, the square will return to its original spot.
Good luck!

Let's Play Speed Match!

a(n)=8+(n-1)(-6)
80
a(1)=-4 a(n)=a(n-1)+2
a(1)=10 a(n)=a(n-1)-3
30, 21, 12, 3, -6
d=7
a(n)=-6+(n-1)(5)
-121
7, 13, 19, 25, 31
280
a(1)=3 a(n)=2a(n-1)
96, 48, 24, 12, 6
a(n)=19+(n-1)(9)
1, -8, 64, -512, 4096
-166
a(n)=-7+(n-1)(-3)
-4, -16, -64, -256, -1024
a(1)=80 a(n)=1/2a(n-1)
a(1)=-2 a(n)=-5a(n-1)
d=-11
a(n)=5+(n-1)(-4)
139
r=-4
r=1/3
r=3
5, 1, -3, -7, -11
-6, -1, 4, 9, 14
19, 28, 37, 46, 55
-2, 10, -50, 250, -1250
a(1)=30 a(n)=a(n-1)-9
8, 2, -4, -10, -16
a(1)=1 a(n)=-8a(n-1)
a(1)=7 a(n)=a(n-1)+6
19, 28, 37, 46, 55
80, 40, 20, 10, 5
1701, 567, 189, 63, 21, 7
-7, -4, -1, 2, 5
3, 6, 12, 24, 48
10, 7, 4, 1, -2
5, 15, 45, 135, 405, 1215
8, 2, -4, -10, -16
24, 13, 2, -9, -20, -31
-6, -1, 4, 9, 14
a(1)=-4 a(n)=4a(n-1)
-4, -2, 0, 2, 4
3, -12, 48, -192, 768, -3072
-7, -4, -1, 2, 5
5, 1, -3, -7, -11
5, 12, 19, 26, 33, 40
a(1)=96 a(n)=0.5a(n-1)

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## Here are all the answers:

 Description Match: 5, 12, 19, 26, 33, 40 d=7 24, 13, 2, -9, -20, -31 d=-11 5, 15, 45, 135, 405, 1215 r=3 3, -12, 48, -192, 768, -3072 r=-4 1701, 567, 189, 63, 21, 7 r=1/3 a(1)=7 a(n)=a(n-1)+6 7, 13, 19, 25, 31 a(1)=30 a(n)=a(n-1)-9 30, 21, 12, 3, -6 a(1)=-4 a(n)=4a(n-1) -4, -16, -64, -256, -1024 a(1)=1 a(n)=-8a(n-1) 1, -8, 64, -512, 4096 a(1)=96 a(n)=0.5a(n-1) 96, 48, 24, 12, 6 -4, -2, 0, 2, 4 a(1)=-4 a(n)=a(n-1)+2 10, 7, 4, 1, -2 a(1)=10 a(n)=a(n-1)-3 3, 6, 12, 24, 48 a(1)=3 a(n)=2a(n-1) -2, 10, -50, 250, -1250 a(1)=-2 a(n)=-5a(n-1) 80, 40, 20, 10, 5 a(1)=80 a(n)=1/2a(n-1) -7, -4, -1, 2, 5 a(n)=-7+(n-1)(-3) 5, 1, -3, -7, -11 a(n)=5+(n-1)(-4) 19, 28, 37, 46, 55 a(n)=19+(n-1)(9) -6, -1, 4, 9, 14 a(n)=-6+(n-1)(5) 8, 2, -4, -10, -16 a(n)=8+(n-1)(-6) -7, -4, -1, 2, 5 80 5, 1, -3, -7, -11 -121 19, 28, 37, 46, 55 280 -6, -1, 4, 9, 14 139 8, 2, -4, -10, -16 -166