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Okay so i got a math test 2morrow (grade 10), and my buddy already had the test. He said there is 1 question he didnt know the answer to. He said the question was like like 0y=7 and you have to explain what that means. He cant remember the exact question but its something like that. Does any1 have an idea about what im saying

huejas wrote:0y=7

if that is the question then i believe the answer would be no solution
what topic are you guys getting tested on?

Morgoth wrote:

huejas wrote:0y=7

if that is the question then i believe the answer would be no solution
what topic are you guys getting tested on?

equations and graphing and shit like that

o, i see but yeah i dont think there's a solution to that particular problem

Morgoth wrote:o, i see but yeah i dont think there's a solution to that particular problem

so i would just right the line(equation) had no solutions...becuause...

if it really is 0y=7 then there's no way to graph it, so yes just put no solution

Morgoth wrote:if it really is 0y=7 then there's no way to graph it, so yes just put no solution

okay thx and also thanks for quick reply

it just hit me
technically if you divide any number (in this case 7) by zero it is equal to infinity if you are trying to clear y that way


so you can put no solution and to explain why this is you can say that y=infinity

huejas wrote:Okay so i got a math test 2morrow (grade 10), and my buddy already had the test. He said there is 1 question he didnt know the answer to. He said the question was like like 0y=7 and you have to explain what that means. He cant remember the exact question but its something like that. Does any1 have an idea about what im saying

what class are you taking

Morgoth wrote:it just hit me
technically if you divide any number (in this case 7) by zero it is equal to infinity if you are trying to clear y that way


so you can put no solution and to explain why this is you can say that y=infinity

i was taught that you cant divide by zero...
hmm what about if i say the liek has no slope?

Jstar1 wrote:

huejas wrote:Okay so i got a math test 2morrow (grade 10), and my buddy already had the test. He said there is 1 question he didnt know the answer to. He said the question was like like 0y=7 and you have to explain what that means. He cant remember the exact question but its something like that. Does any1 have an idea about what im saying

what class are you taking

grade 10 academic(university) math lol

hmmmm.... err well not really cause to start out it wouldn't have a slope in the first place even if y=7 and even if it was 0y=x+7 you're still dividing (x+7) by zero so it still turns to infinity

your best bet is that the answer is infinity (and yes dividing any number by zero =infinity )

maybe you can impress your teacher for some extra credit

Morgoth wrote:hmmmm.... err well not really cause to start out it wouldn't have a slope in the first place even if y=7 and even if it was 0y=x+7 you're still dividing (x+7) by zero so it still turns to infinity

your best bet is that the answer is infinity (and yes dividing any number by zero =infinity )

maybe you can impress your teacher for some extra credit

hmm okay

so basically tho, this is a line...and on the line you can graph inifity points therefore giving yu infinity solutions?

huejas wrote:

Morgoth wrote:hmmmm.... err well not really cause to start out it wouldn't have a slope in the first place even if y=7 and even if it was 0y=x+7 you're still dividing (x+7) by zero so it still turns to infinity

your best bet is that the answer is infinity (and yes dividing any number by zero =infinity )

maybe you can impress your teacher for some extra credit

hmm okay

so basically tho, this is a line...and on the line you can graph inifity points therefore giving yu infinity solutions?

no keep it simple, just answer it as no solution because 7/0 gives no solution. There is no line

yeah what Jstar1 said, there wouldn't be anything to graph so just write it next to the graph i guess

good luck on your test

Morgoth wrote:hmmmm.... err well not really cause to start out it wouldn't have a slope in the first place even if y=7 and even if it was 0y=x+7 you're still dividing (x+7) by zero so it still turns to infinity

your best bet is that the answer is infinity (and yes dividing any number by zero =infinity )

maybe you can impress your teacher for some extra credit

Jstar1 wrote:

huejas wrote:

Morgoth wrote:hmmmm.... err well not really cause to start out it wouldn't have a slope in the first place even if y=7 and even if it was 0y=x+7 you're still dividing (x+7) by zero so it still turns to infinity

your best bet is that the answer is infinity (and yes dividing any number by zero =infinity )

maybe you can impress your teacher for some extra credit

hmm okay

so basically tho, this is a line...and on the line you can graph inifity points therefore giving yu infinity solutions?

no keep it simple, just answer it as no solution because 7/0 gives no solution. There is no line

see look...one of you says its infinity and the other says its none

Morgoth wrote:yeah what Jstar1 said, there wouldn't be anything to graph so just write it next to the graph i guess

good luck on your test

alright, so no solution
thanks guys

well what he meant is that since there is no way to graph infinity there wouldnt really be a graph

but the answer is infinity (trust me; unless the problem isnt 0y=7 )

Simplifique wrote:

It may simply be "nothing"y=7 ie y=7 =>
a straight horizontal line with 7 intercept on y axis.

that would be if it was 1y=7 (i dont think it was coincidence that the problem had a zero in front of y unless the problem was different)

Simplifique wrote:0y=7 =/= y=infinity

0y=7 => 0=7 <--- illogical

It may simply be "nothing"y=7 ie y=7 =>
a straight horizontal line with 7 intercept on y axis.

yeah you better hope your friend gave you the right info, cause then our help would be of little help

Morgoth wrote:well what he meant is that since there is no way to graph infinity there wouldnt really be a graph

but the answer is infinity (trust me; unless the problem isnt 0y=7 )

Simplifique wrote:0y=7 =/= y=infinity

0y=7 => 0=7 <--- illogical

It may simply be "nothing"y=7 ie y=7 =>
a straight horizontal line with 7 intercept on y axis.

okay so i combine these 2 and i finally got it...
the y intercept is 7
there is no slop
so its just a straight horizontal line
therefore giving you infinety solutions

am i right this time

no its just infinity cause if you have y=infinity how are you going to graph that? you cant. cause you couldnt just graph y=7 and make it go on for ever since it isnt y=7 its y=infinity

so just infinity

Morgoth wrote:no its just infinity cause if you have y=infinity how are you going to graph that? you cant. cause you couldnt just graph y=7 and make it go on for ever since it isnt y=7 its y=infinity

so just infinity

lol alright

3 different ppl posting at once can be really confusing

hey huejas, how did your test go?

wtf is this stupid question? It's 1st grade class math.

0=7 or y=7/0 impossible, end of story.

If there is x: y=7/x , we use limit if x=0
when x->0+, lim y = lim 7/x = +infinity
when x->0-, lim y = lim 7/x = -infinity

x=0 doesnt exist because a number cant be both +infinity and -infinity

Morgoth wrote:hey huejas, how did your test go?

test went good

huejas wrote:

Morgoth wrote:hey huejas, how did your test go?

test went good

i bet you got an A

any value you plug in for Y will be multiplied by zero,and zero can never equal 7

look at it that way instead of trying to say 7/0 is undefined

Jstar1 wrote:

huejas wrote:

Morgoth wrote:hey huejas, how did your test go?

test went good

i bet you got an A

i bet so too haha