Question

question
find the range of the function defined by the set of points below. express your answer as a set of numbers
(0, -7), (-9, -2), (-1, -9)

Explanation:

Step1: Recall range definition

The range of a function (defined by ordered pairs) is the set of all second elements (y - values) of the ordered pairs.

Step2: Identify y - values

For the ordered pairs \((0, - 7)\), \((-9, - 2)\), \((-1, - 9)\), the y - values are \(-7\), \(-2\), and \(-9\).

Step3: Form the range set

We collect these y - values into a set. The set of these values is \(\{-9, - 7, - 2\}\) (we can also write it in ascending or descending order, but the key is to include all unique y - values).

Answer:

\(\{-9, - 7, - 2\}\)