VCE Further Maths Exam 1 Discussion and Solutions

[Joseph41]

A COPY OF THE EXAM.

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[brady_price]

Hey everyone! I'm Brady, the Further Maths lecturer for ATAR Notes. I'll gradually be putting up my suggested solutions for the exam. Take them with a grain of salt (interpret that how you will), as they will be subject to a bit of editing! Hope you're all happy with the exam.

Suggested Answers

(anything starred is subject to change)

Core:

Spoiler

Q1. D
Q2. B
Q3. D
Q4. D
Q5. B
Q6. E
Q7. E
Q8. B
Q9. A
Q10. A
Q11. D
Q12. D
Q13. B
Q14. D
Q15. D
Q16. A
Q17. A
Q18. D
Q19. C
Q20. D
Q21. E
Q22. B
Q23. D
Q24. B

Matrices:

Spoiler

Q1. B
Q2. E
Q3. C
Q4. C
Q5. A
Q6. D
Q7. A
Q8. A

Networks:

Spoiler

Q1. B
Q2. C
Q3. A
Q4. D
Q5. C
Q6. E
Q7. D
Q8. B

Geometry and Measurement:

Spoiler

Q1. D
Q2. D
Q3. B
Q4. B
Q5. C
Q6. B
Q7. E*
Q8. A*

Graphs and Relations:

Spoiler

(Contributed by Deanator71)
Subject to change:
Q1. B
Q2. C
Q3. B
Q4. E
Q5. D
Q6. C
Q7. C
Q8. D

[Joseph41]

And there will be a copy of the exam as of tonight.

[fish99]

Could someone help me as to why Q14 answer is D?

[ayri1234]

Shouldn't question 8 be D? (Core)

[larz1203]

Could someone help me as to why Q14 answer is D?

Because it's a 7-median smoothed maximum wind speed, you take the data point for the 4th day and 3 days before and after that. That means that the one in the middle, vertically, is the data point for day 1 which is ~30

That being said, I have another question. In the last question for matrices, I got A as my answer. For my calculations, V=0.7; W=0.1; X=0.5;Y=0.6 and Z=0.2. Therefore W (0.1) isn't bigger than Z (0.2). Or did I make a mistake?😞

[VIRTUP]

can you please explain why in matrices question 8's answer is C. thanks

[fish99]

Because it's a 7-median smoothed maximum wind speed, you take the data point for the 4th day and 3 days before and after that. That means that the one in the middle, vertically, is the data point for day 1 which is ~30

yep - i plused 3points before the 4th day (including the 4th day) and 3 points after that... and then divided by 7 = approx 32....... what did I do wrong?

[bethany.north]

I'm pretty sure the answer to Matrices question 8 is A??

[iBennyz]

Shouldn't Q.8 of matrices be A?
X=0.5
Y=0.6
V=0.7
W=0.1
Z=0.2
Put the transformation matrix and multiply for S0, you'll get the S1 matrix given.

A. W>Z = 0.1 > 0.2 (Not true)

[Khold]

Could someone help me as to why Q14 answer is D?

Day 1's value (30) is the middle-most of the 6 other points surrounding and including Day 4, meaning that 3 of the other points are above it and the remaining 3 below it

Shouldn't question 8 be D? (Core)

Yeah that's what I got

[Schmidt]

Matrices Q8 should be A

calculations should show that V = 0.7, W = 0.1, X = 0.5, Z = 0.2 and Y = 0.6

Because 0.1 is not greater than 0.2, A is the answer.

[sertani]

Shouldn't question 8 be D? (Core)

look at the x axis. Its from point 21 not 0 so the y axis intercept cant be 17.4

[brady_price]

Shouldn't question 8 be D? (Core)

Y-intercept is where x = 0

[Schmidt]

Shouldn't question 8 be D? (Core)

The x-axis starts at 21 on the image of the graph, meaning the y-intercept cannot be 17.4 as it appears in the provided image. Answer is B