The vectors **a** and **b** are shown - HSC - SSCE Mathematics Extension 1 - Question 6 - 2020 - Paper 1

Question 6

The vectors **a** and **b** are shown.
Which diagram below shows the vector **v** = **a** - **b**?
A.
B.
C.
D.
Worked Solution & Example Answer:The vectors **a** and **b** are shown - HSC - SSCE Mathematics Extension 1 - Question 6 - 2020 - Paper 1
Identify the vector operation

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The operation v = a - b suggests we need to find the resultant vector starting from the head of vector b towards the tail of vector a.
Analyze the vector direction

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Since we are subtracting vector b from vector a, the resultant vector v will point in the direction of a and away from the end of vector b.
Compare with given diagrams

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Looking at the diagrams provided,
- Diagram A positions a and b incorrectly.
- Diagram B misrepresents the direction of v.
- Diagram C shows the vectors incorrectly.
- Diagram D properly positions v starting from the tail of b and pointing towards the head of a, accurately reflecting v = a - b.
Select the correct diagram

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The correct diagram that represents the vector v = a - b is D.
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