Question

State the Domain and Range: { (-1,1) (-3,3) (5,-5) (-7,7)
d={-1,-3,-5,-7}
range {1 3 5 7}
d = { -7. -3 -1 5}
range {-5 1 3 7 }

Answer 1

Let's clarify the domain and range based on the given sets of ordered pairs.

**Ordered pairs:** { (-1, 1), (-3, 3), (5, -5), (-7, 7) }

1. **Domain:** This is the set of all the first elements (x-values) from the ordered pairs.
- From the pairs, we extract the x-values: -1, -3, 5, and -7.
- Thus, the domain \( d \) is:
\[
d = \{-7, -3, -1, 5\}
\]

2. **Range:** This is the set of all the second elements (y-values) from the ordered pairs.
- From the pairs, we extract the y-values: 1, 3, -5, and 7.
- Thus, the range \( r \) is:
\[
r = \{-5, 1, 3, 7\}
\]

So, summarizing:

- **Domain:** \( d = \{-7, -3, -1, 5\} \)
- **Range:** \( r = \{-5, 1, 3, 7\} \)