Question

2. Which set below is the domain of

{(2, -3), (-1,0), (0, 4), (-1, 5), (4, -2)}?
F-3, 0, 4, 5, -2}
H {2, -1,4}
G-3, 4, 5, -2}
D {2, -1, 0, 4}

Answer 1

D

Explanation:

the domain is the interval or set of all valid x values.

the range is then the interval or set of all valid y values.

so, the x values are

2, -1, 0, -1, 4

and the set eliminates any multiple appearances of a value.

so, we get

{2, -1, 0, 4}