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Reflection
Please help me

Reflection Please help me-example-1
User Adam Gent
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1 Answer

3 votes

Answer:

Explanation:

I'll do three of these. I'll try and vary them as much as possible.

Number 1

Remark

Read this carefully.

Rule: If you are reflecting across the line y= x (which you are) the rule is Point (x,y) becomes point (y,x). So now you have to set up a table using this transformation.

Now you have to follow the example most carefully. Notice how x and y are interchanged. There is no sign change with this example.

Given points Transforms into

  • (1,-2) ========> (-2,1)
  • (2,-1) ========> (-1,2)
  • (3,-3) ========> (-3,3)

The diagram for this transformation is on the left.

Question Two

I'm going to take a chance here and say that the reflection takes place across y = - x (Your diagram is cut off).

If I am right, then the rule is

Rule for line y = -x

Rule: The point (x,y) transforms into (-y,-x) What that means is that you interchange x and y. While you are at it, you put minus signs in front of x and y when they switched.

Diagram Points Switched points.

  • (-4,-1) ================> (1,4)
  • (-4,-5) ================> (5,4)
  • (-2,-5) ================> (5,2)
  • (-2,-4) ================> (4,4)
  • (-4,-1) ================> (4,1)

Problem 5

This is a reflection across the x axis.

Rule: the object reflected across the x axis will not change the x value but the y value will become -y

Diagram points Switched Points

  • (1, - 1) ====================> (1,1)
  • (4, -1) ====================> (4,1)
  • (3, -5) ====================> (3,5)
Reflection Please help me-example-1
Reflection Please help me-example-2
Reflection Please help me-example-3
User Exexzian
by
8.0k points