Question

If y = 3x – 4 and the domain is { -3, -1, 4}, find the range. a) When the domain is -3, the range is ______.

Answer 1

The range is the set of values that the function assumes, depending on the domain.

So, if the domain is

`D = \{-3,\ -1,\ 4\}`

the range is

`R = \{f(-3),\ f(-1),\ f(4)\}`

Here's the table with the values:

`\begin{array}cx&3x-4\\-3&-13\\-1&-7\\4&8$\end{array}`