Question

What are the domain and range of f(x) = 4x – 8?

domain: x ; range: y > –8
domain: x ; range: y
domain: x > 4; range: y > –8
domain: x > –4; range: y > 8

Answer 1

A on edg

Explanation:

Answer 2

Option A

Explanation:

We have given that :
`f(x)=4^x-8`

To find : domain and range of the function

Solution : The domain of the function is where the function is defined and the given function is defined for all real number

∴ domain: x

Now, the range of the function is the set of value that correspond with domain

`f(x)=4^x-8` the range correspond to value when y > -8

∴ range: y > –8

Therefore, Option A is correct

domain: x ; range: y > –8