Question

The function () = 3 − 4 has a range of {-7, -1, 0, 5, 11, 20}.
What is the domain?

Answer 1

Question: The function
`f(x) = 3x-4` has a range of
`\{-7, -1, 0, 5, 11, 20\}`.

What is the domain?

Domain:
`\{-1, 1,(4)/(3) , 3, 5, 8\}`

Explanation:

Domain is the input, and range is the output. In other words, the domain is the
`x` value, and the range is the
`f(x)` (the whole value, output). So we will solve each one step by step, all with the same solution. To reiterate, what is done for -7, for instance, will be done for every other range.

Start with -7. Remember, solve this accordingly.

Replace the
`f(x)` with the range

`f(x) = 3x - 4\\\\=-7 = 3x - 4`

Solve

`-7 + 4 = -3`

(When adding negative a to a positive, it results in a negative.)

`(-3)/(3) = -1`

That's how you solve it.