A certain bank assigns one unique number to each savings account. The amount of savings in each account depends on how much the owner deposits into the account. The interest paid on each account depends on how much money is in the account.

Which of these relations is not a function?

(interest paid, savings account number)

(interest paid, amount in savings account)

(savings account number, interest paid)

(savings account number, amount in savings account)

Question

A certain bank assigns one unique number to each savings account. The amount of savings in each account depends on how much the owner deposits into the account. The interest paid on each account depends on how much money is in the account.

Which of these relations is not a function?

(interest paid, savings account number)

(interest paid, amount in savings account)

(savings account number, interest paid)

(savings account number, amount in savings account)

anonymous · Answer

@this-emo-kid9 @AravindG  @Nikkisky12  @kriscoin  @hippo4 @FriedRice14 
can someone please help me?

kriscoin · Answer

I think B

anonymous · Answer

ok thank you, but can u explain y?

anonymous · Answer

i think B is the only function in the whole group

anonymous · Answer

let me look into it a bit more

anonymous · Answer

but its askin which one is not?
ok thank u

anonymous · Answer

C, because the savings account number does not depend on the interest payed to it. 
in A, the interest payed does depend on the account number, in B, The interest payed does depend on the amount in the account, and in D, the account number does depend on the amount put into the account

anonymous · Answer

ok thank u sooooooo..... much!!!

anonymous · Answer

No problem

anonymous · Answer

can u help me with another one?

anonymous · Answer

Sure

anonymous · Answer

Consider the two groups listed below. Which statement correctly describes the relationship of the two sets if they were mapped?


•all eighth grade students
•birthdays

 The relation (students, birthdays) is a function, but the relation (birthdays, students) is not. 

 The relation (birthdays, students) is a function, but the relation (students, birthdays) is not. 

 Both relations (students, birthdays) and (birthdays, students) are functions. 

 Neither the relation (students, birthdays) nor the relation (birthdays, students) is a function.

anonymous · Answer

those are the only 2 I got problems with

anonymous · Answer

A, because each birthday may not have a unique student, but every unique student has a birthday if that makes sense. I didnt know how else to explain it

anonymous · Answer

ok thank u so much

anonymous · Answer

No problem