differentiation

[trim storm]

anybody got the answers?

anybody here

[coarse copper]

.

hi

i am your saviour young man/girl

now, dont ask for "answers"

this isnt how help works

to differentiate these polynomials

you have to use the power rule for diffentiation

do you remember that?

[trim storm]

nope

I cant remember a thing

And it’s due in 18 mins

I’m panicking

[coarse copper]

$\frac{d}{dx} \left( x^n \right) = nx^{n-1}$

[round sentinel]

Xenon

[trim storm]

what’s that

[coarse copper]

$\frac{d}{dx} \left( f(x) + g(x) \right) = f'(x) + g'(x)$

[round sentinel]

Xenon

[coarse copper]

thisi s the power rule

for differentiating polynomials

[trim storm]

ah I cant remember seeing that

could you help me please

it’s due in 15 mins now

I’m stressing

[coarse copper]

so for example, the derivative for x^2, is 2x

its ok dont stress

[trim storm]

how do i get the answers

[trim storm]

I’ve tried photomarh and apps

but they cant do it

[coarse copper]

$\frac{dy}{dx} = 6x-2x^{-3}$

[round sentinel]

Xenon

[trim storm]

and i cant even find my pen 😭

[coarse copper]

this is the derivative for the first one

so plug in x=1 and x=2 to get the gradient of y at those points

[trim storm]

u need to find the gradient at x=1 and then x=2

oh right

[coarse copper]

and this is the gradient of y

[trim storm]

Thank you so so much

so I swap the X for the values?

[coarse copper]

yes

[trim storm]

TYYY

[coarse copper]

now ill do the next one while you figure it out

$\frac{dy}{dx} = \frac{3}{2} x^{\frac{1}{2}} - 48$

[round sentinel]

Xenon

[coarse copper]

so

$0= \frac{3}{2} x^{\frac{1}{2}} - 48$

[round sentinel]

Xenon

[coarse copper]

$48= \frac{3}{2} x^{\frac{1}{2}}$

[round sentinel]

Xenon

[coarse copper]

$32= x^{\frac{1}{2}}$

[round sentinel]

Xenon

[coarse copper]

$x = 32^2 = (2^5)^2 = 2^{10} = 512$

[round sentinel]

Xenon

[trim storm]

i got 4 and 11.75

For the first

[coarse copper]

ok cool. looks about right

[trim storm]

what’s the second one

the 2 sets of co ordinates

[coarse copper]

wait oops i got the 2nd one wrong

ignore the working out

its (4,20)

x=4, y=20

local minium coordinates is also (4,20)

this one is...

[trim storm]

so on this one it’s x = 4

And y = 20

[coarse copper]

yes

[trim storm]

Gotcha

[coarse copper]

(1,4)

[trim storm]

I used a bot for that and got 1,3

[coarse copper]

nope its 1,4

i know bcos i graphed it ;)

[trim storm]

okay thank

ahahaha ur so smart tf

[coarse copper]

ty

[trim storm]

What about the x^3 question

wait did i not photograph that

oops

@coarse copper

[coarse copper]

x=-2 and x=2

(-2,15)

[trim storm]

for the left side?

[coarse copper]

(2,-13)

[trim storm]

That’s the last one

[coarse copper]

(1,4)

[trim storm]

I’ll submit now

[coarse copper]

hopefully i havent screwed you

[trim storm]

I got 10/12

[coarse copper]

yay

[trim storm]

thanks so much

[coarse copper]

which was wrong?

[trim storm]

i appreciate that

uhh I’ll show u now

[coarse copper]

isnt that what you put?

[trim storm]

oh yeah didn’t notice

WTF

might be a glitch don

idk*

But thank you so so much

[coarse copper]

i never make mistakes 😎

[trim storm]

is there anything I can do to support you

[coarse copper]

yes

you can nominate me

in

[trim storm]

like what

[coarse copper]

#helper-nominations

[trim storm]

where to?

there :£

🙂

I’ve sent u a friend request too!

[dire patio]

Differentiation of x power -1 is - x power -2