Question

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

Answer 1

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

Step-by-step 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 = ${ -5 , -1 , 3 , 7 , 11 }$