Question

{(1, 4), (2, 4), (3, 2)} is a function?

True or False

What is the domain of {(1, 4), (2, 4), (3, 2)}?
A. {1, 2, 3}
B. {2, 4}
C. {1, 2, 3, 4}
D. {4}

What is the range of {(1, 4), (2, 4), (3, 2)}?
A. {1, 2, 3}
B. {2, 4}
C. {1, 2, 3, 4}
D. {4}

If the function rule is 5x, what is the value when x = 4?
A. 1
B. 9
C. 20
D. 54

The ordered pairs {(1, 2), (2, 3), (3, 4)} could be answers for the function rule x + 1. (If you put the x value in, would you get the y value as a result?)
True or false

Answer 1

1. yes, it is a function

2. { 1,2,3} = domain

3. { 2,4 } = range

4. 5x...when x = 4......5(4) = 20

5. True