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Act in the image BSI is reflector across the y-axis what is the rule for the new image

Act in the image BSI is reflector across the y-axis what is the rule for the new image-example-1
User Caroll
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1 Answer

12 votes
12 votes

To answer this question, we need to take into account the reflection over the y-axis is given by the following rule:

If (x, y) is reflected over the y-axis, then the image is (-x, y).

Then, from the graph, we have that the coordinates are:

B(5, 5)

S(2, 2)

I(5,0)

Then, the image across the y-axis is:

B(5, 5) ---> Ry-axis ---> (-5, 5)

S(2, 2) ---> Ry-axis ---> (-2, 2)

I(5, 0) ---> Ry-axis ---> (-5,0)

Then, the rule for the new image is (-x, y).

User Tleyden
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