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I. Identification
Using the given set of ordered pairs, identify what are the domain, range, and type of relation.
Write HAPPY if it is Function and SAD if it is Not Function. 4 POINTS each number.
1. {(-5,13)(13,1)(9,1)(0,2)}
2. ((2,1)(3,8)(4,6)(-2,6)}
3. {(0,18)(0,1)(-7,2)(-9,10)
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Sagot :

Bonnteaidn

1.

Domains are -5, 13, 9, 0.

Ranges are 13, 1, 1, 2.

It is A FUNCTION. Happy Face.

2.

Domains are 2, 3, 4, -2.

Ranges are 1, 8, 6, 6.

It is A FUNCTION. Happy Face.

3.

Domains are 0, 0, -7, -9.

Ranges are 18, 1, 2, 10.

It is NOT A FUNCTION. Sad Face.

Explanation :

- Domains are the first number in a pair.

- Ranges are the second number in a pair.

- If one of the domains were repeated, then it is NOT a function.

- If one of the ranges were repeated or if none is repeated, then it is A function.