if you loved me, you would help Options

[*salcha*]

CHEM:
TRICLINIC CRYSTAL SYSTEMS: axinite

What type of substances is axinite found in?
What are the current/possible economic values of axinite?
Explain possible uses of axinite, ie.


help


CALC:
f(-5)=4; f(0)=0; f(5)=-4
f'(-5)=f'(0)=f'(5)=0;
f'(x)>0 if |x|>5; f'(x)<0 if 0<|x|<5

how would you graph that?
so we have points (-5,4), (0,0), and (5, -4)
what would you do about the derivatives? where does it concave up/down and how can you tell?

[annalucky]

http://mineral.galleries.com/minerals/sili...ite/axinite.htm

http://www.answers.com/axinite

somewhat of a help?

[*salcha*]

I've already been to both sites before, and they didn't provide much info, but thanks anyway

[illumineering]

The color, hardness and clarity of axinite crystals make it a quality gemstone as it is able to be cut/faceted for use in jewelry settings. It is also used in the metaphysical community to facilitate change and healing processes although I cannot cite specifics. Try a Google search for metaphysical properties of axinite.

Axinite is found in silicate rocks and druze granite formations. In the US, it is mined in PA and CA.

[*wind&fire*]

what would you do about the derivatives? where does it concave up/down and how can you tell?

find stationary points.... f'(x)=0

determine nature
use f"(x) equation and sub in the x values for the stationary points

f"(x)<0 concave up
f"(x)>0 concave down

this is the fast way... your teacher may want the box test

for points of inflection make the f"(x)=0 and find x values...

[BOOGERSHAHA]

CALC:
f(-5)=4; f(0)=0; f(5)=-4
f'(-5)=f'(0)=f'(5)=0;
f'(x)>0 if |x|>5; f'(x)<0 if 0<|x|<5

------

1. plot the points given on the graph (duh)
2. f'(-5) = 0. this means that at (-5, 4), the slope of the graph is zero.
3. f'(0) = 0. this means that at (0,0), the slope of the graph is zero. same thing with (5,-4)

okay i suck at explaining. i'll draw--er, sketch really badly the graph.


this should be right....i'm not so great with MS paint. i can explain stuff more if you need me to.

yeah so near the right ish, it looks like the slope is zero for a range of values, but its not supposed to be like that. haha sorry, it was the best i could do. also i didn't really draw that the graph had a slope of 0 at (0,0) but it should be.

[The_AZN_Godfathe...]

Jeez.

I only take 7th grade science and 9th grade math so I won't even try to help you...

[AnnahhbeL]

i suck at math.
but then again, i'm only on 9th grade math..

[BOOGERSHAHA]

well, this is calculus for you! and not to be a downer, but it gets 100000x worse. T.T oh i how loathed calc...

[innovation]

Actually, Calc is getting better for me. Maybe because (a) I sit next to someone really boring so I have nothing to do but pay attention, and (b) I now take extensive notes.

[*salcha*]

je like french, THANK YOU SO MUCH
i think i have the concept down.

[*stephinika*]

when is this due? calc suuucks btw.

[EddieV]

Headache mode...