SOLUTION: What is the domain (the first element or number, from each pair) of this relation:
{ (4,1), (5,2), (6,-1), (8,5) }
*
{4, 5, 6, 8}
{4, 5, 6}
{-1, 2, -1, 5}
{4, -1, 5, 2}
Algebra.Com
Question 1086290: What is the domain (the first element or number, from each pair) of this relation:
{ (4,1), (5,2), (6,-1), (8,5) }
*
{4, 5, 6, 8}
{4, 5, 6}
{-1, 2, -1, 5}
{4, -1, 5, 2}
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Each point is of the form (x,y). The x coordinate is listed first.
The domain is the set of all possible x values of a relation. So it's simply the set of all the x coordinates.
The x coordinates are {4, 5, 6, 8} which is why the answer is choice A
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