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Senior 2Vectors and Translation • Showcase mission

The Missing First-Aid Box

Sports Day begins in less than an hour, but the first-aid box is in the wrong place. Use vectors to give one route that nobody can misunderstand.

55–70 minutes✎ Pencil and paper★ Explain every answer
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The situation

The clinic has supplies—but no exact route.

The school field has been drawn on a coordinate grid. The equipment store is at A(2, 1), while the first-aid tent is at B(6, 4). A volunteer wrote 'move over and up' on the route card—but that instruction is not exact enough.

⚠ THE PROBLEM YOU MUST SOLVE

How far right and how far up must the box move from A to B?

Your job: describe the movement as a vector, use it to translate other points, and check that the route ends at the first-aid tent.

Foundation • A vector describes movement

Direction and distance belong together.

A vector tells us how far an object moves horizontally and vertically. We write the horizontal movement first, then the vertical movement. Right and up are positive; left and down are negative.

FIRST COMPONENT

Horizontal movement

Compare the x-coordinates. From x = 2 to x = 6 is 4 units to the right, so the first component is +4.

SECOND COMPONENT

Vertical movement

Compare the y-coordinates. From y = 1 to y = 4 is 3 units up, so the second component is +3.

THE CHECK

Add to the start

A(2, 1) + (4, 3) = (6, 4). The result is B, so the vector reaches the correct destination.

Worked example • Follow the reasoning

Find the vector from A(2, 1) to B(6, 4).

Use destination minus starting point. Keep x with x and y with y.

1
HORIZONTAL6 − 2 = 4

Move 4 units right.

2
VERTICAL4 − 1 = 3

Move 3 units up.

3
WRITE AND CHECKAB = (4, 3)

(2, 1) + (4, 3) = (6, 4).

QUICK CHECK 1

What vector moves P(1, 2) to Q(5, 7)?

QUICK CHECK 2

Translate R(−1, 2) by the vector (5, −3). Where does it land?

QUICK CHECK 3

What is (3, 2) + (−1, 4)?

QUICK CHECK 4

What vector moves A(3, −2) to B(−1, 5)?

QUICK CHECK 5

Translate C(2, −3) by (4, 6).

QUICK CHECK 6

Which vector leaves every point unchanged?

QUICK CHECK 7

What is the opposite of the vector (3, −5)?

QUICK CHECK 8

Combine the movements (2, 1) and (3, −4).

QUICK CHECK 9

A translation moves a triangle. What stays the same?

QUICK CHECK 10

What does the first component −6 mean?

QUICK CHECK 11

What does the second component +4 mean?

QUICK CHECK 12

Find the vector from P(−2, 4) to Q(−2, −3).

QUICK CHECK 13

A point moves twice by (2, 3). What is the total movement?

QUICK CHECK 14

Where does O(0, 0) land after translation by (−5, 2)?

QUICK CHECK 15

Which vector returns B to A if AB = (4, 3)?

Final scenario challenge

Which route card reaches the first-aid tent?

The box begins at A(2, 1) and must finish at B(6, 4). Choose the exact instruction.

Explain your thinking

Why is a vector safer than saying 'move over and up'?

Write two or three sentences. Use the mathematical steps from the mission as evidence—not only the final answer.

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Workbook and teaching support

Continue on paper, teach it in class, or send the guided activity home.

Senior 2 SHOWCASE MISSION

You made the mathematics visible.

A strong answer does not guess. It represents, calculates and explains.

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