Melody

Thanks Rosala, don't stop writing your "Laughs"

I love them and I suspect they are read by more people than you realise.

Remember there is a lot of people who read posts who never comment on anything but that does not mean that they do not enjoy them.

I like the wedding cake only we need a balancing wedding display where the husband has his wife chained to the sink or something. LOL   

Thanks Brittany,

Can you tell us why this is the formula.  

and what do you do if the angle is in degrees???   

Thanks Quentin, but you need to add some working or the asker cannot learn anything. 

if y=x^2+2x-3, what is y when x=-4?

$$\\y=(-4)^2+2*(-4)-3\\
y=16+-8-3\\
y=16-8-3\\
y=5$$

Thanks Chris :)

Yes part 2 was a bit short

I do hope Bonnie is alright!

You can

sin-1 is the same as asin

That really does look VERY impressive Heureka.

Hopefully I will have time to examine it properly later, because I don't have it now.  

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Hi anon,  Please read this post.

How to upload an Image.

Thanks Chris,

I'm all confused, algegraically what you say seems correct but look at the pic.

I think the answer is  (0,0), (1,2) and (-1,2)My algebra is slightly diff from your but I get the same answer - i am sure it is wrong. 

It's doing my head in - I am going to take a break.  :))

Chris tells me that Desmos is not fully compatible with Firefox.  Major Bummer !!!!!

He says if you use the screen keypad instead of your normal keypad it works fine.

He said it will stuffs up other things as well as Desmos if I use my normal keyboard.

Thanks for the feedback Chris. 

[ I'd smile but I don't like your assessment - we need a half smile in here :)) ]