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Which of these is a function?
{(0, 4), (0, 5), (0, 9), (0, 23)}
{(0, 1), (1, 2), (1, 5), (2, 9)}
{(0, 4), (2, 4), (3, 7), (4, 9)}
{(6, 0), (6, 1), (6, 7), (6, 11)
please help me:(
 11 months ago
 11 months ago
Which of these is a function? {(0, 4), (0, 5), (0, 9), (0, 23)} {(0, 1), (1, 2), (1, 5), (2, 9)} {(0, 4), (2, 4), (3, 7), (4, 9)} {(6, 0), (6, 1), (6, 7), (6, 11) please help me:(
 11 months ago
 11 months ago

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xxCyndiBest ResponseYou've already chosen the best response.1
look at the x value of each point.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
it's consider a function if xvalue is not repeated, it's not consider a function if the xvalue is repeated. hope this helps :)
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
look at option d, the domain are repeated. since it's all 6's. look for the option that the domains are different numbers. domain=xvalue
 11 months ago

samtabBest ResponseYou've already chosen the best response.0
im sorry but i dont get it
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
you see the ( ) and the number within it right? sorry i'm bad at explaining in the ( ) you have whats called the x value and the y value
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
put it simply example (1,9) the first number 1, would be your x value, and the 9 would be your y value. hence, (x,y)
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
a (0,4) (0,5) (0,9) (0,23) you see how it is all 0's? that means domain is repeated since 0 is repeated.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
it is not a, to answer your question. look at the first number, your x value. remember it cannot be repeated.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
do you know, what are x values and y values？
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
you see the numbers in the parenthesis?
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
the first number would be you x value/domain let's take your question for example take your first parenthesis on a for example. you have (0,4) correct? like i mention earlier, the first number is your xvalue, which by looking at the number in the parenthesis you have 0. so your x value, which is also your domain, is 0.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
now, you look at every single parenthesis in option a. remember that first number is always your xvalue and the definition for a function is that xvalue(domain) cannot be repeated. {(0, 4), (0, 5), (0, 9), (0, 23)} see how the domain is repeated since the first number is all 0's? which would make option a NOT a function.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
{(0, 1), (1, 2), (1, 5), (2, 9)} looking at the option B. for option B, you have x value of : 0,1,1,2 see how 1 is repeated in this function? so therefore, B is NOT a function as well.
 11 months ago

xxCyndiBest ResponseYou've already chosen the best response.1
the correct answer would be c. {(0, 4), (2, 4), (3, 7), (4, 9)} looking at the first number of the parenthesis you would get the x value of: 0,2,3,4 you see how the number above is not repeated? that means this is the correct answer because it would represent a function.
 11 months ago
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