What is the domain of this function(1,2),(2,6),(3,5),(4,6),(5,2)?

Question

A:2,6,5,6,2 B:1,2,3,4,5 C:Undefined D:All real numbers

Answer 1

These are the coordinates in the form (x,y) where the first number represent x value and the second number represent y value
Domain means the spread of x values. In your case the x values start at 1 and continue on till infinity, so your domain will be Natural numbers or N.
Jim Burnell is partially correct because he ignored ... which means the coordinates continue beyond listed and the domain is not just 1,2,3,4 but it is 1,2,3,4,5,6, and so on

Answer 2

The domain of a function is the set of x-values. Think of the domain as the "input" and the range is the y-values or the "output".

Looks like your question might have been cut off, but of what's left, the domain is {1,2,3,4}.

I didn't ignore the "...", either. Your question ends with (4,6.... If I'd seen (4,6).... I'd have assumed that you meant that it keeps going. I can't assume that, though.

So if the original problem had ... then yes, the domain keeps going to infinity. But if it didn't end in ..., then the answer is just the finite set of x-coordinates.

Helmut's answer is wrong because it implies that ANY number between 1 and 5 will work, including decimals. But there's no indication from the points that you listed that the domain contains non-integers.

And krimpy's answer is way wrong. Just because you have (2,6) and (4,6) doesn't mean it's not a function. The rule for something to be a function is that you can't have 2 different OUTPUTS (y values) for the same INPUT (x value). (2,6) and (4,6) are allowed for a function, because you're using the same y-value twice, which is allowed.

(BTW, when you repeat a y-value more than once, it means that the function is not "one-to-one", but that's another thing.)

Answer 3

The domain of the function represented by:
(1,2), (2,6), (3,5), (4,6), (5,2)
is
1 ≤ x ≤ 5

Answer 4

It's (1

Answer 5

hi,
basically...u don't define the domain for a function ..rather ...u define a function "on" a domain...so..unless u fix ur domain...u wud not call it a function..that too it has to satisfy other conditions..like....no two 'x' values shud give the same 'y' value...and..u shud notice that in ur question..u ve mentioned (2,6)as well as(4,6)...so this is no function at all...........so wat actually u ve given me is...a "relation" ...not a function...nevertheless... we can as well get the domain of the realtion...provided..u give the whole relation..i mean....mention all the "ordered pairs"of ur relation.....take all the first co ordinates... and that ll be ur domain...
hope u got wat u wanted
luv,
me

Answer 6

n (natural numbers) [ I suppose (...) means they continue to infinity. so the domain will be 1,2,3,.... which is the set of Natural Numbers ] good luck :)

Answer 7

The domain of these is (1,6)

Answer 8

I suck at math. 8?