Find the domain of f (x) = - 4x + 2 for the range {-5, 2, 6, 18).

Step-by-step explanation:

calculate x for this equation

f (x) = - 5 : - 4x + 2 = - 5 so : - 4x = -7 x = 7/4

f (x) = 2 : - 4x + 2 = 2 so : - 4x = 0 x = 0

f (x) = 6 : - 4x + 2 = 6 so : - 4x = 4 x = - 1

f (x) = 18 : - 4x + 2 = 18 so : - 4x = 16 x = - 4

the domain is : D = {7/4, 0, - 1, - 4}