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BECE Mathematics 2022 Paper

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Question : 7

Total: 40

The point

S(4,3)

is reflected in the

y

-axis, Find the coordinates of the image of

S

$(-3,4)$
$(4,-3)$
$(3,-4)$
$(-4,3)$

Solution:

Concept:

Reflection in the

y

-axis changes only the sign of the

x

-coordinate.

Explanation:

The rule for reflection in the

y

-axis is

(x, y) \rightarrow (-x, y)

.

The given point is

S(4,3)

, so

x = 4

and

y = 3

.

Apply the rule:

S'(4,3) \rightarrow (-4,3)

.

Therefore, the coordinates of the image are

(-4,3)

.

Answer:

(-4,3)

, which is Option D.

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