x= number of boys in the club because it is unknown.
x + 7= the number total number of girls in the club.
You use explicit funtion to find a particular number in the list without needing to write all the list down.
For example, the first range of number has a constant difference of 5. Its explicit funtion would be: x(n)=3+(n-1)*5 (with x is the number you need to find, n is the number's position in the range)
Basically, a explicit funtion in that problem has the form:
x(n)=f+(n-1)*d
with:
x= the number needed to find
n= the number's position
f = the first number in the range
d = the distance
Good luck!
I cant graph it but y is anything less that 4/5 such as 1/5,2/5,3/5,and 4/5
I hope that is what you need.
3
he could use:
1x55 cent coin
1x10 + 1x25 cent coins
4x10 cent coins
4-1=3
