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4 years ago

A reflection maps the point (2, 3) to the point (2, -3). It is a reflection over the

Mathematics

2 answers:

Usimov [2.4K]4 years ago

5 0

Answer:

Option A - x-axis

Step-by-step explanation:

Given : A reflection maps the point (2, 3) to the point (2, -3).

To find : It is a reflection over which axis

Solution :

A reflection maps the point (2, 3) to the point (2, -3).

which means y coordinate change their sign to opposite sign

When the y coordinate change their sign then it is reflection over x-axis.

The reflection of the point (x,y) across the x-axis is the point (x,-y).

f(x,y) → f(x,-y)

Therefore, option A is correct.

A reflection maps the point (2, 3) to the point (2, -3). It is a reflection over the x-axis.

KATRIN_1 [288]4 years ago

3 0

Answer:the answer is x-axis

Step-by-step explanation: because when it's on the y-axis the x negative

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3 years ago

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Step-by-step explanation:

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$(2-y)y=-8\\\therefore \: 2y - y^2 = - 8\\\\\therefore \:y^2 - 2y-8=0\\\\\therefore \:y^2 - 4y+2y-8=0\\\\\therefore \:y(y - 4)+2(y-4)=0\\\\\therefore \:(y+2)(y - 4)=0\\\\\therefore \:(y+2)=0\:\: or\:\:(y - 4)=0\\\\\therefore \:y=-2\:\: or\:\:y =4\\\\ When \:\: y = - 2\implies x = 4\\\\When \:\: y = 4\implies x = - 2\\$

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