Question

7. Find the range of the function f(x) = 4x – 1 for the domain {-1, 0.1.2.3). (I point)

O{-5, -3,0,7, 11
O2-5, -4,-3, -2.-1}
O{-11.-7.-3.1.5)
O{-5.-1,3,7, 11

Answer 1

Answer: {
`{ -5 , -1 , 3 , 7 , 11 }` }

Explanation:

Given :

`f(x) = 4x - 1`

domain = {
`-1 , 0 , 1 , 2 , 3` }

To find the range , we will substitute the domain as the value of x into the function given , that is

when x = - 1

`f(x) = 4 (-1) - 1`

`f(x) = -5`

when x = 0

`f(x) = -1`

when x = 1

`f(x) = 4(1) - 1`

`f(x) = 3`

When x = 2

`f(x) = 7`

when x = 3

`f(x) = 11`

Therefore: the range =
`{ -5 , -1 , 3 , 7 , 11 }`