What is the domain and range of f(x) = 4x - 8?

Solution:

Given f(x) = 4x - 8

The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes.

They may also have been called the input and output of the function.

So, the domain can take any value of x as it gives a valid output for all x

Hence, the domain is x ∈ R, where R is the set of all real numbers

Since, the denominator is 1, for all x values, it gives valid output

Therefore, the range is also x ∈ R.

Thus domain = {-∞, ∞}, {x,x ∈ R}

Range = {-∞, ∞}, {x,x ∈ R}

What is the domain and range of f(x) = 4x - 8?

Summary:

The domain and range for the function f(x) = 4x - 8 is x ∈ R. Domain = {-∞, ∞}, {x,x ∈ R} and range = {-∞, ∞}, {x,x ∈ R}