# 0 = real number?Watch

#1
1. is 0 a real number?

2. in the graph of
do u draw y = -x
then translate it 4 units to the left, then reflect in the negative y in x axis?

3. in the graph of
do u draw y = x
then translate it 2 units to right x = scale factor 1/2?

help pls!
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10 years ago
#2
Yes, 0 is a real number.
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10 years ago
#3
1. Yes
2. Dunno what you tryna say
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10 years ago
#4
No, just draw the graph of y= -x + 4 but don't go beneath the x-axis, instead, just go back up at the same angle to which it went down....I hope you get what I'm saying lol.
It's because it's a modulus so it can't be negative on a graph.
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10 years ago
#5
is a real number zero?
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#6
(Original post by Gorst8)
No, just draw the graph of y= -x + 4 but don't go beneath the x-axis, instead, just go back up at the same angle to which it went down....I hope you get what I'm saying lol.
It's because it's a modulus so it can't be negative on a graph.
ya i get that what about the 3rd question? i can do modulus but is the working out for a normal graph without the modulus correct
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10 years ago
#7
Whats a fake number?
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10 years ago
#8
(Original post by Simplicity)
Whats a fake number?
i think by real he means an integer/none complex
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10 years ago
#9
(Original post by neomilan)
i think by real he means an integer/none complex
A real number is any number that isn't complex. It doesn't have to be an integer.
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10 years ago
#10
i think by real he means an integer/none complex
Q doesn't make up the whole of R. Actually Q is only a small fraction of R, as its countable and R is not.
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10 years ago
#11
(Original post by thewrong_girl)
A real number is any number that isn't complex. It doesn't have to be an integer.
It seems like every-other post I make says this, but what you have written is not true. Every real number is a complex number, but not every complex number is a real number.
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10 years ago
#12
Is 0 an imaginary number?
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10 years ago
#13
Every number is complex - it is just that the comples coefficient is zero.

Zero is a number - you run into problems when you count it as not being a number.

0 is both real and imaginary in the sensee the OP is refering to.
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10 years ago
#14
(Original post by spursj911)
2. in the graph of
This is the same as the graph of y = 4-x but any negative y-values become positive. Sketch y = 4-x and it should be obvious how to draw the required graph.
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10 years ago
#15
(Original post by Glutamic Acid)
Is 0 an imaginary number?

So yep.

A complex number is just with . In the case of zero, .
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10 years ago
#16
(Original post by spursj911)
1. is 0 a real number?
What kind of question is this, considering that at your level they don't even define what a real number is.

Under every conventional definition, it is a real number.
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10 years ago
#17
(Original post by ChiefNX)

So yep.

A complex number is just with . In the case of zero, .
That shows that 0 is a complex number not an imagianry number.

According to wikipedia, an imaginary number 'is a complex number whose squared value is a Real Number not greater than zero'.

Using this definition, 0 is an imaginary number but I have a feeling that it's one of those things in maths where definitions vary.

In conclusion, I'm not sure!
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10 years ago
#18
(Original post by notnek)
That shows that 0 is a complex number not an imagianry number.

According to wikipedia, an imaginary number 'is a complex number whose squared value is a Real Number not greater than zero'.

Using this definition, 0 is an imaginary number but I have a feeling that it's one of those things in maths where definitions vary.

In conclusion, I'm not sure!
Because 0 = 0i
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10 years ago
#19
(Original post by The Bachelor)
Because 0 = 0i
Well yes but only if you define an imaginary number as 'ai' where a is a real number.

I found this definition online: 'An imaginary number is a number that when squared gives a real negative result'.

Using this, 0 is not an imaginary number. So like I said before, it depends on the definition.
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10 years ago
#20
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