Are they implying that interaction (I) between children (c) is a quadratic function ????
then
I(c)= (c-1)^2
so I(8) = 7^2 = 49
(look like a text-book editor's feeble attempt to "make mathematics real" )
If there is 1 child, there can be 0 interactions.
If there are 2 children, there can be only 1 interaction.
If there are 3 children, there can be 4 interactions.
If there are 4 children, there can be 9 interactions.
How many interactions will there be for 8 children?
then
I(c)= (c-1)^2
so I(8) = 7^2 = 49
(look like a text-book editor's feeble attempt to "make mathematics real" )
If there is 1 child, there can be 0 interactions.
If there are 2 children, there can be 6 interactions.
If there are 3 children, there can be 15 interactions.
If there are 4 children, there can be 27 interactions.
How many interactions will there be for 7 children?
60
81
105
108
1 child: 0 interactions
2 children: 1 interaction
3 children: 4 interactions
4 children: 9 interactions
By examining the pattern, we can notice that the number of interactions is increasing based on the square of the number of children.
To calculate the number of interactions for 8 children, we can use this pattern:
Number of interactions = (Number of children)^2
Plugging in the value for 8 children:
Number of interactions = 8^2
= 64
Therefore, there will be 64 interactions for 8 children on the playground.