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BECE Mathematics 2023 Paper

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Question : 3

Total: 40

Find the image of the point

S(-2,2)

when it is reflected in the

y

$(2,-2)$
$(2,2)$
$(-2,-2)$
$(-2,2)$

Solution:

Concept:

Reflection in the

y

-axis changes the sign of the

x

-coordinate only.

Explanation:

The rule for reflection in the

y

-axis is:

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

Here, the point is

S(-2,2)

, so

x = -2

and

y = 2

.

Apply the rule:

(-2,2) \rightarrow (-(-2),2) = (2,2)

The

y

-coordinate remains unchanged.

Answer:

The image of

S(-2,2)

is

(2,2)

.

Therefore, the correct option is B.

(2,2)

.

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