Question

If ƒ = {(4, 2),(5, 1),(6, 2),(7, 3),(8, 6)}, then the range of ƒ is

Answer 1

Answer: {1, 2, 3, 6}

Step-by-step explanation:

The range is the set of y coordinates of each point, aka the set of possible outputs of the function. We list each item once only. Duplicates are removed or ignored. Sorting the items is optional.

Answer 2

`\displaystyle{R_f = \{2,1,3,6\}}`

Step-by-step explanation:

The range is the set of all y-values in set of coordinate points (x,y). So we will be picking all y-values which are considered as range of f:

`\displaystyle{R_f = \{2,1,2,3,6\}}`

However, we do not write duplicated or repetitive elements in a set. Therefore, we write only one of duplicated elements:

`\displaystyle{R_f = \{2,1,3,6\}}`

Hence, the range of f is {2,1,3,6}