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anonymous
 one year ago
Which relation is a function?
A.
{(–3, 4), (–2, 5), (0, 9), (0, 12)}
B.
{(1, 2), (1, 5), (1, –1), (1, 4)}
C.
{(7, 12), (1, –5), (3, –10), (2, –5)}
D.
{(8, –1), (2, –1), (3, 8), (2, 5}
anonymous
 one year ago
Which relation is a function? A. {(–3, 4), (–2, 5), (0, 9), (0, 12)} B. {(1, 2), (1, 5), (1, –1), (1, 4)} C. {(7, 12), (1, –5), (3, –10), (2, –5)} D. {(8, –1), (2, –1), (3, 8), (2, 5}

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The question did not provide a chart so i dont know what it is i need to do to find the Function. Please help

geerky42
 one year ago
Best ResponseYou've already chosen the best response.1Relation is a function if there is no xvalue that pairs with more than one yvalue.

unknownunknown
 one year ago
Best ResponseYou've already chosen the best response.2A function needs a unique map from independent variable : dependent variable. Check for unique x values in each case.

geerky42
 one year ago
Best ResponseYou've already chosen the best response.1For example, it's not A since xvalue 0 pairs with both 9 and 12.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so your saying they all have to be different numbers? or no?

unknownunknown
 one year ago
Best ResponseYou've already chosen the best response.2If I ask you what x is, you must give me an answer y. You cannot give me two answers y. So each x must have a unique value y.

unknownunknown
 one year ago
Best ResponseYou've already chosen the best response.2f(x) is I mean.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh.. so then it has to be different numbers.. or Values

unknownunknown
 one year ago
Best ResponseYou've already chosen the best response.2So for example, in A. We have (0, 9), and (0,12). If I ask you.. what is f(0)? Do you say.. well it's 9... or do you say it's 12? You can't give me a definite answer, so this isn't a function.

unknownunknown
 one year ago
Best ResponseYou've already chosen the best response.2Yes that's right, well done.
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