How many elements of B are not in the range of…

How many elements of B are not in the range of this f?

Question 76

EasyOriginal question

$A = \{1, 2, 3, 4\}$ , $B = \{a, b, c, d, e\}$ , and $f : A \to B$ is $f = \{(1, a), (2, c), (3, e), (4, b)\}$ .

How many elements of $B$ are not in the range of this $f$ ?

0

Correct answerYour answer

1

Correct answerYour answer

4

Correct answerYour answer

5

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

Worth noting

4 is the size of the range, not of what it misses.

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

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