anonymous
  • anonymous
Which is not a function? Is the relation y^2+5x=8 a function? Explain.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
in the standard definition; No
amistre64
  • amistre64
if y axis is up and xaxis is left; this aint a function
anonymous
  • anonymous
The graph of a function can never cut the y-axis in two places. As this contans y to the powewr 2 it implies that the graph will cut in two places the y-axis. Hence not a function.

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amistre64
  • amistre64
it can cut the y axis twice; there is no reason to suggest that y is not the input and x the output; it is only by convention that x is left and right, while y is up and down
anonymous
  • anonymous
Run a vertical line across athe graph of a function and it will only hit the graph in one place at a time, fact.
amistre64
  • amistre64
thats not a fact, its a convention; replace x and y with r and t, then what?
anonymous
  • anonymous
Amistre, have you been here all day?
amistre64
  • amistre64
just got back on actually ;)
anonymous
  • anonymous
I take your point, it is a little pedantic but the conventions of x-axis and y-axis as we both understand them allows my answer to hold.
amistre64
  • amistre64
it does :) and it is lol
anonymous
  • anonymous
Which country are you operating from?
amistre64
  • amistre64
y^2+5x=8 x = (-y^2 +8)/2 is a function the other way it is not ....
amistre64
  • amistre64
usa, florida
amistre64
  • amistre64
..../5
anonymous
  • anonymous
OK, France and here it is way past the time for bed so bonsoiree my friend
amistre64
  • amistre64
Ciao ;)

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