Suggested Answers (and Discussion) of the Further Maths Exam!

[superalexnguyen]

Graphs & relations
Question 5, could someone please explain why it's only C. The gradientstill touches point B and either could be the maximum. So shouldn't it be the whole line?

[maddymerz]

I got A for Matrices Question 8 but now am unsure

[apan]

I got A for Matrices Question 8

Me too! I've heard some stuff about having to add columns but this dominance matrix was like any other, so hence we had to add the rows.

I'm also confident than 24 in core is C! Because an annuity present value is always negative.

I think I got 36/40 on that exam - have I lost my chance at a 40+?

[Zealous]

Hi!

I also believe the answer to 24 is C, $1500 a month.

You can also solve this algebraically:



Solving that gives p=-1500.0000189.

[blossum]

Me too! I've heard some stuff about having to add columns but this dominance matrix was like any other, so hence we had to add the rows.

I'm also confident than 24 in core is C! Because an annuity present value is always negative.

I think I got 36/40 on that exam - have I lost my chance at a 40+?

Remember this and the next exam are both weighted 33%
If you keep it up I'm sure you have a pretty good chance! Work hard for Monday *~*

I got between 34-37 depending on the challenges... Praying it's 37 LOL but knowing my luck it'll be the 34.

[unknown000]

I believe question 2 of core is B...

[apan]

Remember this and the next exam are both weighted 33%
If you keep it up I'm sure you have a pretty good chance! Work hard for Monday *~*

I got between 34-37 depending on the challenges... Praying it's 37 LOL but knowing my luck it'll be the 34.

Intense cramming here I come!

I believe you'll get the 37!! What questions are you not so sure about?

I made 1 silly mistakes and 2 questions I guessed because I had no idea! The last was 2 from core - I chose ordinal and nominal (D) but I'm convinced now that they're both ordinal!

What modules did you do?

[knightrider]

lol imo the further exam wasnt overly hard but what made it confusing was the ambiguity of some of the options.

Hope everyone went well  !!

like some of the options could have been interpreted in two ways like last qn of core. Also other qns as well.

[EdwinJS]

Anyone able to explain their answer for Graphs and Relations Q6 the y=kx^n question? Thanks.

[zoemull]

can someone explain to me how to work out Q8 on the Graphs and Relations module??? thanks

[zoemull]

Graphs & relations
Question 5, could someone please explain why it's only C. The gradientstill touches point B and either could be the maximum. So shouldn't it be the whole line?

if you look closely the line isn't actually parallel to BC (I made the same mistake too) so the last point it hits when you move your ruler across is C, which is the maximum

[twinsniper]

Anyone able to explain their answer for Graphs and Relations Q6 the y=kx^n question? Thanks.

Its E, and to see this, take a look at Graph E. The x axis is labeled "X^3", where X cubed is said to be 2. If you take the cube root of 2, you get approximately 1.25. Now take a look at the K*x^n graph, the origianl one. IF you draw a line from x=1.25, you'll get a Y value similart to 3, the given Y value for E.

I don't know if you guys reached a verdict for Q2 core, but my two cents, its D. Blood pressure makes sense for an ordinal varialbe because it refers to levels of blood pressure, Low, Medium and high, and you can ask the question "What level of blood pressure was recorded". The age group however should be nominal, as you cannot ask a question or refer to the groups in a way that distinguishes level. You cannot say "What level of age did they belong to" or similar questions, you can only ask questions referring to it as an age group, "What age group did they belong to", where the label for age groups are "Under 50's" and "Over 50's"

[busssar]

Graphs and relations (module 4)
Can someone please explain to me how they did the last question? ... I had no idea how to do it and just ended up guessing

[blossum]

Intense cramming here I come!

I believe you'll get the 37!! What questions are you not so sure about?

I made 1 silly mistakes and 2 questions I guessed because I had no idea! The last was 2 from core - I chose ordinal and nominal (D) but I'm convinced now that they're both ordinal!

What modules did you do?

Haha wow congrats I hope your next exam is as successful.
Did you figure out how to do those questions?

I did matrices and networks!
Unsure:
Core Q2 (picked B, OP says maybe D)
Core Q24 (picked C, OP says maybe E)
Matrices Q8 (picked A, OP says maybe E)

Wrong:
Core Q8 (picked B) - I ruled out the right answer (C) first because I didn't even think about it haha
Core Q11 (picked C)- I totally forgot to log(y) on my CAS and calculated the regression without it
Matrices Q6 (picked C) - silly mistake, flew straight over the zero

[zacgiles]

Looks like I fucked further 7 wrong on the first bloody exam