$A$ has 3 elements and $B$ has 4. How many functions are there from $A$ to $B$ ?

12

Correct answerYour answer

24

Correct answerYour answer

64

Correct answerYour answer

81

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Worth noting

$3^{4} = 81$ counts maps from $B$ to $A$ , the other way round.

Ten questions from Relations & Functions, at your own pace.

Ten questions from Relations & Functions, at your own pace.

AAA has 3 elements and BBB has 4. How many functions are there from AAA to BBB?