Question

If the domain of f(n) = -4n - 3 is (-1, 1/4,4}, what is the range?

O(-1, 2, -19)
O(-7,-4, -13)
O {1,-4, -19)

Answer 1

`Range= \{1,-4,-19\}`

Explanation:

Given

`f(n) = -4n - 3`

`n = \{-1,1/4,4\}` --- domain

Required

Determine the range

To do this, we simply substitute the values of n in the given expression

So, we have:

`n = -1`

`f(-1) = -4 * -1 - 3 =4 - 3 = 1`

`n = 1/4`

`f(-1) = -4 * 1/4 - 3 =-1 - 3 = -4`

`n=4`

`f(-1) = -4 * 4 - 3 =-16 - 3 = -19`

Hence, the range is:

`Range= \{1,-4,-19\}`