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dw:1329681298858:dw is the following relation a function



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Akshay_Budhkar
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?

Iplay
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Sorry lol the picture did not show up

Iplay
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dw:1329681517234:dw

Akshay_Budhkar
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Yes it is a one is to one function

Akshay_Budhkar
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Do u get it? or still confused?

Iplay
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Still confused

Iplay
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Lol is there some kind of method to solving this?

Akshay_Budhkar
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yes a relation is a function if every number in its range has a unique image in its codomain

Iplay
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Much better explanation ty :D

Akshay_Budhkar
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yw :D

Iplay
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Would i be using the same method to solve f(x) = 2x +2, find (5)?

Akshay_Budhkar
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you have to find f(5) ?

Iplay
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Yes sorry find f(5)

Akshay_Budhkar
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ok for that u need to just substitute x=5 in the function like in this case
f(5)= 2(5)+2=10+2=12

Iplay
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O easy enough and is this the same for all problems like this?

Mertsj
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A function is a set of ordered pairs in which no two ordered pairs have the same first number.