Question

f:R to R defined by f(x)=3-4x​

Answer 1

Answer:

range=[3,∞)

Step-by-step explanation:

Domain of the function is (-∞,∞).

if we put any negative number in place of x

it becomes positive as your function has negative sign in it . And if we put zero insted of x it becomes 3 .If you put ∞ or -∞ in pace of x

it will become 3+(∞) which is equal to

∞