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sloppycanada
 one year ago
Is the following a functions?
sloppycanada
 one year ago
Is the following a functions?

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sloppycanada
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442802872948:dw

sloppycanada
 one year ago
Best ResponseYou've already chosen the best response.0Is this? {(1, 2), (6, 2), (4, 0), (2, 6)}

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wanna know secret to figure this kinda stuff out easy?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0gonna tell you anyway

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0make a graph with the given points, plot them. connect the dots... then draw a single line straight down. this process is known as the vertical line test.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if it touches the line more than one then it can not be a function. another way to test to see if the xvalue is used twice. then you also know that that cannot be a function.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but Q2 is a function

sloppycanada
 one year ago
Best ResponseYou've already chosen the best response.0So if it's a straight line, it's a function?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if the straight line doesnt touch the connected lines twice ill draw example

sloppycanada
 one year ago
Best ResponseYou've already chosen the best response.0but both of these are functions, correct? {(1, 2), (6, 2), (4, 0), (2, 6)} dw:1442803417818:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442803291128:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0forgive the bad drawing... but see how that line only touched the connecting line once?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that means it is a function. cuz no matter where it you draw that line, it will only touch once.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and again, if you have the same X value twice but different Y values then that too isnt a function. so (4,3) (4,5) is not a function.
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