sloppycanada
  • sloppycanada
Is the following a functions?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
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sloppycanada
  • sloppycanada
|dw:1442802872948:dw|
anonymous
  • anonymous
yes
sloppycanada
  • sloppycanada
Is this? {(1, 2), (6, -2), (4, 0), (-2, 6)}

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anonymous
  • anonymous
wanna know secret to figure this kinda stuff out easy?
anonymous
  • anonymous
gonna tell you anyway
anonymous
  • anonymous
make 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
  • anonymous
if it touches the line more than one then it can not be a function. another way to test to see if the x-value is used twice. then you also know that that cannot be a function.
anonymous
  • anonymous
but Q2 is a function
sloppycanada
  • sloppycanada
So if it's a straight line, it's a function?
anonymous
  • anonymous
if the straight line doesnt touch the connected lines twice ill draw example
sloppycanada
  • sloppycanada
but both of these are functions, correct? {(1, 2), (6, -2), (4, 0), (-2, 6)} |dw:1442803417818:dw|
anonymous
  • anonymous
|dw:1442803291128:dw|
anonymous
  • anonymous
yes they both are
anonymous
  • anonymous
forgive the bad drawing... but see how that line only touched the connecting line once?
sloppycanada
  • sloppycanada
yes
anonymous
  • anonymous
that means it is a function. cuz no matter where it you draw that line, it will only touch once.
anonymous
  • anonymous
and 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.
anonymous
  • anonymous
anymore questions?
sloppycanada
  • sloppycanada
nope thanks

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