Q14 (2 Viewers)

[megaman64]

19pi/72 units cubed?

yep. i got that

 

[freeeeee]

19pi/72 units cubed?

The man is correct lol, BOSS

i got the same thing haha

 

[TheOptimist]

lol here it is I have no math writing software took forever lol

 

[crazy_paki123]

the answer is k<-32, you draw a horizontal lone (k=-32) which is the last time the line intersects the quartic as it is the min y value thus under it there are no graphical solutions due to no intersections. i did a similar question with my tutor the day before the exam :L

 

[gr_111]

the answer is k<-32, you draw a horizontal lone (k=-32) which is the last time the line intersects the quartic as it is the min y value thus under it there are no graphical solutions due to no intersections. i did a similar question with my tutor the day before the exam :L

sack your tutor mate, its definitely k>32.

 

[Rawf]

sack your tutor mate, its definitely k>32.

Lmaoo seeing that he does 2u maths (from his sig), he doesn't even have maths tutoring anymore

 

[Uniqueness]

If you put it in decimals would that be wrong? -_-

 

[narenkumar]

Did we have to write it as a fraction.
I wrote it as a decimal. How much mark will I lose.

 

[youseff_01]

wat shape did u get 4 the graph

 

[lance687876]

the graph didn't work for me, l got a min at 0,0 and a max at -1,-5 and a max at -2,-32 so l just... drew it l guess
l'm guessing l got it wrong so that's 20 marks gone in total.
wow.
never gonna underestimate an exam again.
stupid silly mistakes.

 

[Timske]

the graph didn't work for me, l got a min at 0,0 and a max at -1,-5 and a max at -2,-32 so l just... drew it l guess
l'm guessing l got it wrong so that's 20 marks gone in total.
wow.
never gonna underestimate an exam again.
stupid silly mistakes.

(1,-5) min
(0 , 0) max
(-2,-32) mini

thats what i got

 

[nerdasdasd]

(1,-5) min
(0 , 0) max
(-2,-32) mini

thats what i got

Def correct .

 

[RealiseNothing]

(1,-5) min
(0 , 0) max
(-2,-32) mini

thats what i got

This.

 

[RishBonjour]

it looked like a normal quartic with an upside down parabola in the middle

 

[Timske]

a 'W'

 

[baileychen]

(1,-5) min
(0 , 0) max
(-2,-32) mini

thats what i got

how did u get 0,0 as a maximum i couldnt differentiate it as a maximum or minimum so i wrote point of inflection T_T

 

[Timske]

how did u get 0,0 as a maximum i couldnt differentiate it as a maximum or minimum so i wrote point of inflection T_T

Well there are two ways you could do this; differentiate again or simply sub in values to the left and right of 0.

 

[baileychen]

Well there are two ways you could do this; differentiate again or simply sub in values to the left and right of 0.

what was the equation again i remember differentiating again and getting 0 might have been a silly mistake

 

[Timske]

what was the equation again i remember differentiating again and getting 0 might have been a silly mistake

forgot

 

[RealiseNothing]

I got -2,-32 as a H.P.I. ????

It was definately a minimum.