Yes mole, I know all that. My original question still stands.
WHY?
WHY?
CHAT So, a question on negative numbers
- Thread starter Dennis Olson
- Start date
If you pulled the wings off a fly, would it be called a walk?
mzkitty
I give up.
Yes, I think so too, but...... I had a friend who decided to go back to college and she had to take Algebra. She was really confused and on the verge of tears. I told her she could do it, to try to put English words to the equations. For some reason that worked with her, and even though she had to spend HOURS on it all the time, and some tutoring, she ended up with a "B." I was proud of her.
To-late
Membership Revoked
Draw a line .put a ' . ' For zero at the center. Move right for positive left for negative.
When it pos. X pos. You move right. Because you are increasing the pos.
Pos X neg you move left on the line. Because you are increasing the neg.
But your question is answered with a neg X neg, in which case you move right.
So when you multiply a neg it is in essence subtracting a neg number from the number, so your answer moves right.
Simple.
I hope this helps.
Next class at 9:00 .
When it pos. X pos. You move right. Because you are increasing the pos.
Pos X neg you move left on the line. Because you are increasing the neg.
But your question is answered with a neg X neg, in which case you move right.
So when you multiply a neg it is in essence subtracting a neg number from the number, so your answer moves right.
Simple.
I hope this helps.
Next class at 9:00 .
No, because subtracting a negative from a negative takes you further negative.
Profit of Doom
Dismember
...and you believe them?
jward
passin' thru
Profit of Doom
Dismember
Along with my payment for the hamburger you’re going to give me now.
mole
Doomer Granny
Then you've answered your own question. As stated above before me, it is a trivial property or axiom of numbers. I just provided a concrete example to demonstrate it.
Bumblepuff
Veteran Member
Perhaps. I’ll need to give it some thought. But I’m not convinced of it as a mathematic “rationale” if you will. I know it’s true because I was TAUGHT it’s true. No one ever really proved why.
Profit of Doom
Dismember
Multiplication is actually adding a number a certain number of times. If one of the numbers is negative, the effect of adding it is moving farther negative. But if you are adding it a negative number of times, you must anti-add it, which results in a positive movement.
Is this what an aneurysm feels like?
Say you have -20. Subtract 10 from it (the same as adding -10). You get -30. You have to add a positive to a negative number to “reduce its negativeness.”
Profit of Doom
Dismember
-4 x 3 goes to -12.
-4 x 2 goes to -8.
-4 x 1 goes to -4.
-4 x 0 goes to 0.
-4 x -1 goes to 4.
-4 x -2 goes to 8.
-4 x -3 goes to 12.
Making any sense?
-4 x 2 goes to -8.
-4 x 1 goes to -4.
-4 x 0 goes to 0.
-4 x -1 goes to 4.
-4 x -2 goes to 8.
-4 x -3 goes to 12.
Making any sense?
ok. that is a very different question.
the reason is . . . they needed inverses for rational numbers. the need defined the rules.
hunybee
Veteran Member
NO! NO IT DOESN'T!
i almost got it better the other way. where dennis said it wrong from the other way that everyone was trying to explain the opposite of the other other way. i almost got it and then you said that and its gone.
Raven and PoD, I understand all that. (Considering all the math I had to endure, how could I not.)
But who came up with those rules any why are they the way they are?
No, I’m not trippin on shrooms. This errant thought got stuck in my head this evening and I can’t get rid of it.
But who came up with those rules any why are they the way they are?
No, I’m not trippin on shrooms. This errant thought got stuck in my head this evening and I can’t get rid of it.
Profit of Doom
Dismember
Watch Altered States wearing your 3-D glasses while humming “Paul Is Dead” backwards. It will become clear to you, Grasshopper.
If you add a negative to a negative, it goes more negative. (It’s the same as subtracting a positive from it.) You have to add a positive to a negative (same as subtracting a negative) to get it to go more positive.
And now to quote Austin Powers, “Oh my, I’ve gone crosseyed.”
And now to quote Austin Powers, “Oh my, I’ve gone crosseyed.”
As long as I don’t end up with KungFlu....
negative numbers are theoretical and don't exist in life.
for example, If you owe fred 1000 and john owes you 1000
then theoretically, your balance is zero
but we know john has never been able to put together 1000
so, in reality, you still owe fred 1000
and in reality, fred is screwed.
for example, If you owe fred 1000 and john owes you 1000
then theoretically, your balance is zero
but we know john has never been able to put together 1000
so, in reality, you still owe fred 1000
and in reality, fred is screwed.
If Fred owed you $1000 and you owed Fred $500, you owe Fred -$500.
Profit of Doom
Dismember
Apparently, adding a negative X to anything is equivalent to subtracting X from it. Therefore, multiplying X by a negative number is equivalent to subtracting X a negative number of times, hence adding it |X| times...I’ve lost it now. The sun has set.
Profit of Doom
Dismember
If you and Fred are walking down an alley and a figger jumps out of the shadows and holds you up, what should you do?
this is what happens when an INTJ has given his recommendations
and the other 15 types decide "it is not our corporate culture, can't work, its too hard, or my personal favorite "its our secret sauce"
and the INTJ realizes it is a waste of time and effort to pursue the point and they are going to crash and burn.
So, they revert to math while, forecasting the logical outcome of their chosen course of action, and using that as a basis, attempt to devise a plan for recovery . . . not that he actually has any concern for their well being but more along the lines of it requiring less effort and expenditure of resources and, of course, less drama to solve the problem.
Reinventing entire civilizations is hard and requires too many ESFPs.
It is worthy to note that if the INTJ rescues a dog, buys a 4 wheel drive vehicle and starts talking about traveling to remote places . . . you probably should worry.
and the other 15 types decide "it is not our corporate culture, can't work, its too hard, or my personal favorite "its our secret sauce"
and the INTJ realizes it is a waste of time and effort to pursue the point and they are going to crash and burn.
So, they revert to math while, forecasting the logical outcome of their chosen course of action, and using that as a basis, attempt to devise a plan for recovery . . . not that he actually has any concern for their well being but more along the lines of it requiring less effort and expenditure of resources and, of course, less drama to solve the problem.
Reinventing entire civilizations is hard and requires too many ESFPs.
It is worthy to note that if the INTJ rescues a dog, buys a 4 wheel drive vehicle and starts talking about traveling to remote places . . . you probably should worry.
that is like people saying they have negative three apples. You don't. you have zero apples.
And I don't owe Fred . . . Fred has a broken rib and a cast on his arm and he still owes me the 500 plus the vig.
FaithfulSkeptic
Carrying the mantle of doubt
and if a crap + 2 = 8, then a fart's a fraction.
mzkitty
I give up.
WFK
Senior Something
Suddenly I understand the origin of the question. I wish I had the beer though.
mzkitty
I give up.
And in Euclidian geometry -- A Point:
Definition 1
A point is that which has no part.
Definition 1
A point is that which has no part.
Euclid's Elements, Book I, Definition 1
mathcs.clarku.edu
How I love this place!
