Year 11 2014 Chat :) (26 Viewers)

[dangerouss]

Silly me! That was so simple!
So I could use a table of values to sketch it right?

See my above post

 

[hawkrider]

Whats it on??

1500 essay on my historical investigation where you can pick a topic for research and question to answer

I hate it so much

 

[justem]

Absolute value (standard y=|x|) shifted right 3 units

Yep! Exactly rifhb


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[dangerouss]

Silly me! That was so simple!
So I could use a table of values to sketch it right?

Don't use TOV (it's a waste of time tbh)

 

[hawkrider]

Silly me! That was so simple!
So I could use a table of values to sketch it right?

or you could remember the 1/2 cuts at the y-axis and that you can draw the gradient via rise over run

 

[Simran-]

or you could remember the 1/2 cuts at the y-axis and that you can draw the gradient via rise over run

I'd prefer a Table of Values since I'm more comfortable with that.

 

[hawkrider]

I'd prefer a Table of Values since I'm more comfortable with that.

Oh yeah, of course. If that's what you're comfortable with, then go for it.

Although it may take a bit of time in examinations cause time is precious and doing the quicker way is more efficient (without making mistakes lol), so just putting it out there.

 

[dangerouss]

I'd prefer a Table of Values since I'm more comfortable with that.

I know it takes a while to get used to sketching without TOV but it isn't worth going to so much trouble in an exam for 1/2 marks IMO.

 

[Crisium]

Oh yeah, of course. If that's what you're comfortable with, then go for it.

Although it may take a bit of time in examinations cause time is precious and doing the quicker way is more efficient (without making mistakes lol), so just putting it out there.

If you're talking about straight line graphs then you should probably consider finding the y and x intercept and drawing a line through the two of them

 

[rawrliongirl]

so...very...sleepy..... -o-

 

[Simran-]

thanks everyone!
im gonna be asking lots of q's while im studying, so im sorry if i annoy anyone.

how do we sketch an exponential curve?

 

[Futuremedstudent]

Or maybe it's just me

I don't know

You seem a lot more outgoing and loose, in a sense that you're saying things like "inb4" and "mate"

I swear I've never heard you use terms like that before

i rarely say mate or inb4 to my friends at school, i'm just tired at the moment maybe that's why i'm a bit loose.
maybe i should stop being loose if i want 99.95.

 

[flyingmwa]

Guys, I got my 2u maths mark today!!! I got 54/54 but I dont know if my teacher has finalised it yet. Oh well, for the time being, I will revel in this bliss.

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Ermagawd you genius! Bby I must borrow your brain for the next test plz!

 

[dangerouss]

thanks everyone!
im gonna be asking lots of q's while im studying, so im sorry if i annoy anyone.

how do we sketch an exponential curve?

It almost always goes through (0,1) and just adjust the curve on the basis of the gradient, -f(x) or f(-x).

 

[Simran-]

It almost always goes through (0,1) and just adjust the curve on the basis of the gradient, -f(x) or f(-x).

sorry i didnt get that.
what's normally involved in exponential curves? like the power at the top (x) is always equal to 1 isn't it? but then how do you sketch it?

 

[dangerouss]

sorry i didnt get that.
what's normally involved in exponential curves? like the power at the top (x) is always equal to 1 isn't it? but then how do you sketch it?

I hope this helps

 

[dangerouss]

sorry i didnt get that.
what's normally involved in exponential curves? like the power at the top (x) is always equal to 1 isn't it? but then how do you sketch it?

No the x is the changing x value . Most exp. curves pass through (0,1) because anything to the power of 0 is 1.
I.e
F(x)=7^x
Passes through (0,1)
F(x)=-3^x
Also passes through (0,1)

Unless the power is negative, all exponential curves will pass through (0,1) provided they aren't shifted.

 

[Simran-]

also what would the range be for y= 3 to the power of x.

 

[dangerouss]

also what would the range be for y= 3 to the power of x.

Graph it:

 

[dangerouss]

I'm going to do hw now . If you have questions I'm sure people here can answer them - or you can leave them here and I'll get back to you
- dangerouss x