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37 votes
What is the domain of the following function represented by ordered pairs?

{(4, 9), (-6, 1), (-2, 5), (3, 1))

A(5,9)
B{1, 5, 9)
C(-6, -2,3,4}
D{-6, -2, 1, 3, 4, 5, 9}

User Shurik
by
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2 Answers

11 votes
11 votes

Answer: C

Explanation:

User John Cordeiro
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18 votes
18 votes

Answer: C

Explanation:

Domain is all of the x values in a set of coordinate pairs.

Set: {(4, 9), (-6, 1), (-2, 5), (3, 1))

Step 1: Find every x coordinate

*In every ordered pair like the above, each set of coordinates is given in the order x, then y). So X comes first in every coordinate pair (or set of 2 coordinates)

X values: 4, -6, -2, 3

Step 2: Put into brackets

{4, -6, -2, 3}

This is the domain in order. Putting it in a different order won't change anything as long as they are the same numbers.

Answer= C

Hope this helps!! :D

User Onemach
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2.8k points