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samtab
Group Title
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:(
 one year ago
 one year ago
samtab Group Title
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:(
 one year ago
 one year ago

This Question is Closed

xxCyndi Group TitleBest ResponseYou've already chosen the best response.1
look at the x value of each point.
 one year ago

xxCyndi Group TitleBest 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 :)
 one year ago

samtab Group TitleBest ResponseYou've already chosen the best response.0
does that mean its d?
 one year ago

xxCyndi Group TitleBest 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
 one year ago

samtab Group TitleBest ResponseYou've already chosen the best response.0
im sorry but i dont get it
 one year ago

xxCyndi Group TitleBest 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
 one year ago

xxCyndi Group TitleBest 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)
 one year ago

xxCyndi Group TitleBest 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.
 one year ago

xxCyndi Group TitleBest 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.
 one year ago

xxCyndi Group TitleBest ResponseYou've already chosen the best response.1
do you know, what are x values and y values？
 one year ago

xxCyndi Group TitleBest ResponseYou've already chosen the best response.1
you see the numbers in the parenthesis?
 one year ago

xxCyndi Group TitleBest 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.
 one year ago

xxCyndi Group TitleBest 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.
 one year ago

xxCyndi Group TitleBest 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.
 one year ago

xxCyndi Group TitleBest 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.
 one year ago
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