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Let's do this question, the image of point three, come on five, by the line of symmetry, why is

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it X is the point, B, the image of point B by the line of symmetry, X is equal to zero is C, find

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the coordinates of B and C already.

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Pause the video, give it a try and then let's do it together.

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All right.

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Let's do it together.

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We have the axis over here.

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This is X and Y axis.

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Now let me mark three comma five over here.

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All right.

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Now we need to find the reflection of this point about Y is equal to X right now.

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This is the nine Y is equal to X right now.

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Remember, if you need to find the reflection about why is equal to X, all you need to do is you need

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to interchange to five, comma three is point B.

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Now, we have identified point B over here.

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Now it's mentioned that the image of point B by the line of symmetry X is equal to zero is C, so the

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image of this point by the nine X is equal to zero, which is the Y axis is point C, right.

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So let's find the image of this point about this line that would be minus five three.

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Right.

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So you keep the Y value the same.

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So you have three over here, you have three over here, and you change the X value over here, you

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have five over here you have minus five.

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Right.

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Therefore C is equal to minus five, comma three.

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That is your answer.

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Right.

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You can note that if you find the perpendicular distance of this point from this line and if you find

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the perpendicular distance of this point from this line, both will be equal.

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Similarly, you will find that in this case, the distance over here see all and be or will also be

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equal.

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Therefore, B is five three and C is minus five, comma three.