Question

Which set below is the domain of

{(2, -3),(-1,0), (0,4),(-1,5),(4, -2)}?
(AD {-3, 0, 4, 5, -2} (CD, {2,-1,4}
(3) -3,4,5,-2) (D) {2,-1,0,4}​

Answer 1

`\large \boxed{\sf D. \ \{2,-1,0,4\}}`

Explanation:

The domain are all possible values of x.

`\{(2, -3),(-1,0), (0,4),(-1,5),(4, -2)\}`

The x values are 2, -1, 0, -1, and 4.

The domain of the set is {2,-1,0,4}​.

Answer 2

Domain { -1,0,2,4}

Explanation:

{(2, -3),(-1,0), (0,4),(-1,5),(4, -2)}

The domain is the input values

Domain { 2,-1,0,-1,4}

We normally write them in order from smallest to largest and no repeating

Domain { -1,0,2,4}