Question

WILL GIVE MEDAL. A function with the domain (2, 3, 4) has a specific range. Determine the function and its range.

The function with the domain (2, 3, 4) is...

A: 3x + 2

B: x + 1

And its range is...

C: (2, 6, 8)

D: (8, 11, 14)

Answer 1

Do you know what the domain and range of a function are?

Answer 2

Not really, which is exactly why I'm confused with this problem.

Answer 3

A function has ordered pairs of the form (x, y).
The domain is the values you can use for x.
The range is the values you can use for y.

Answer 4

For example, if you have a function with these ordered pairs:
{(1, 5), (3, 15), (6, 28)}
The domain is the set {1, 3, 6} and the range is the set {5, 15, 28}.

Answer 5

Okay. So, what would be the answers to the question? Or how would we figure it out?

Answer 6

I think A,D