Can you name the Mathematical Graphs? by princessjill

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Mathematical Graphs Quiz

by princessjill

Created Sep 26, 2009 in Science
Game Plays 1,415

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	SecretAZNMan:	Sep 27th, 2009 at 03:36 GMT		-2 points
	There's an option for multiple answers - line and parabola don't work at the moment. I also have never heard of anything called a rational graph, nor can I find anything on it with a quick search. That equation would just produce a standard quartic.

	princessjill:	Sep 27th, 2009 at 03:52 GMT		4 points
	A rational function is basically a polynomial divided by a polynomial - has asymptotes, holes, and whatnot. I think I fixed the line/linear problem now. Thanks for the input!

	cmeyers47:	Sep 27th, 2009 at 04:06 GMT		0 points
	I am a mathematician, and a lot of these weren't obvious to me. But that didn't stop it from being fun! Yay math.

	princessjill:	Sep 27th, 2009 at 04:39 GMT		5 points
	That's what it's all about - having fun. :) Sporcle needs more math quizzes!

	Barbaloot:	Sep 28th, 2009 at 01:13 GMT		11 points
	Sinusoidal should be accepted for cos(x).

	Secret_Asian_Man:	Sep 28th, 2009 at 03:06 GMT		4 points
	greatest integer should be accepted for step.

	gracie:	Sep 28th, 2009 at 06:47 GMT		2 points
	"parabolic" and "polynomial" should be accepted for parabola, and "greatest integer function" for step. otherwise, good idea for a quiz!

	HarryNJ:	Sep 28th, 2009 at 20:09 GMT		1 point
	Wouldn't discontinuous work for the piecewise example since you don't define it for x=2?

	yggdrasil:	Sep 29th, 2009 at 06:33 GMT		3 points
	y = sqrt(x - 5) is just a parabola that's been cut in half and laid on its side.

	Superb_starling:	Sep 30th, 2009 at 04:25 GMT		1 point
	Also, shouldn't floor function be acceptable if GIF is?

	James_Kay:	Oct 1st, 2009 at 01:57 GMT		1 point
	Great quiz. It'd be great if they published this quiz to put the graphs alongside the functions. You might consider changing x^2/4 + y^2/9 = 1 to (x^2)/4 + (y^2)/9 = 1, since it's hard to tell if the fractions are part of the exponent or not. Anyone care to do a version for equations with three variables?

	Doctor_Tom:	Oct 4th, 2009 at 00:11 GMT		2 points
	Ah i knew what all of these looked like just didn't know their names.

	Cryptus:	Oct 7th, 2009 at 17:42 GMT		1 point
	modulus or absolute should be accepted for \|x\|, since this is what the actual function is called.

	brianmcp:	Oct 13th, 2009 at 19:17 GMT		1 point
	square root function should be acceptable for radical

	brianmcp:	Oct 13th, 2009 at 19:18 GMT		0 points
	square root* it's not a function

	James_Kay:	Dec 16th, 2009 at 05:33 GMT		6 points
	The name of this quiz should probably be changed to Can you name the mathematical functions. These are definitely functions, not graphs.

	WyvernSabres:	Apr 24th, 2010 at 19:22 GMT		1 point
	sqrt(x - 5) certainly is a function, with suitably defined domain such as {x : x >= 5}, since the notation represents the positive square root only. I personally don't really agree with those suggesting alternatives for y = [x]. The question was type of graph not name of function, and it is a step graph.

	marpocky:	May 2nd, 2010 at 00:28 GMT		1 point
	Somewhat inconsistent. y=2x+5 is not called a line, but its graph is. y=(x-4)/(x^3-9) is called rational but its graph is not.