Question

A function $f=\left\{\right(21,0),(22,1),(23,2),(24,3\left)\right\}$ is given.
Which table represents the above given function ?

• A.

  INPUT$\left(X\right)$	OUTPUT$\left(Y\right)$
  21	0
  22	1
  23	2
  24	3

• B. ↵

  INPUT$\left(X\right)$	OUTPUT$\left(Y\right)$
  21	0
  22	1
  24	2
  24	3

• C. ↵

  INPUT$\left(X\right)$	OUTPUT$\left(Y\right)$
  21	0
  21	1
  22	3
  24	3

• D. ↵

  INPUT$\left(X\right)$	OUTPUT$\left(Y\right)$
  0	21
  1	22
  2	23
  3	24

Answer 1

The correct option is A

INPUT$\left(X\right)$	OUTPUT$\left(Y\right)$
21	0
22	1
23	2
24	3

We know function can be written as collection of ordered pair $(x,y)$, where $x$ is the input value and $y$ is the output value.
Now, we can see that in option$\left(a\right)$ all input and output values are correct. Hence, Option$\left(a\right)$ is correct answer.