thatjacksonguy
are the ordered pairs(-2,-1),(-1,0)(6,3) and (-2,-1) a function?
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thatjacksonguy
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what is the domain
and range
Mertsj
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A function is a set of ordered pairs in which no two ordered pairs have the same first number. So is it a function?
thatjacksonguy
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no
Mertsj
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Good job. The domain is the set of x values and the range is the set of y values.
thatjacksonguy
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help me understand that im a little confused on that part
Mertsj
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Do you know which is the x value of an ordered pair and which is the y value?
thatjacksonguy
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yea the first number in the pair is x second is y
Mertsj
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So what are the x values of your ordered pairs?
thatjacksonguy
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-2,-1,6,-2
Mertsj
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So put them in order (don't list any number twice), put braces around them and that's your domain.....the set of x values. Do the same with the y values and that will be the range.
thatjacksonguy
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so i dont put -2 twice??
Mertsj
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Did you see where I typed not to list any number twice?
thatjacksonguy
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lol yea just wanted to be sure this is very important to my grade right now
Mertsj
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{-2,-1,6} That's the domain.
thatjacksonguy
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thanks a bunch you rock
Mertsj
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yw. Don't forget to do the range.
thatjacksonguy
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will do