At a summer camp, 6-year-olds are in Group A, 7-year-olds are in Group B, and 8-year-olds are in Group C. Is the group assignment a function of age? If so, is the function one-to-one or many-to-one?
O A yes; many-to-one
O
B. yes, one-to-many
O C. yes, one-to-one
OD noit is not a function of age

C yes, one to one

Step-by-step explanation:

for every different value of age there is one specific function result.

f(age) = summer camp group, age in N, 6 <= age <= 8

this function is therefore not defined for ages outside of that interval, or if not natural numbers.

under these criteria every allowed value of age has a different calculated summer camp group. no two values of age have the same result as summer camp group.

therefore, it is a one-to-one function.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

irrational, cannot