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Urgent help, transformation maths (year 8)

Hey, i've got a maths homework piece and i can't work out what the heck it means.

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2.  The diagram shows part of a shape.
     The shape has rotational symmetry of order 2 about x.

a    Copy and complete the shape, and name it.

b    Show how the completed shape will tessellate.

3. On the grid, triangle Q is a reflection of triangle P.

a. i  Copy the diagram and draw the mirror line for this reflection.

   ii   Write down the equation of the mirror line.

b. Describe fully the single transformation that maps triangle P onto triangle R.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Urgent help, transformation maths (year 8)

2a. parallelogram with line through it.

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igloo myrtilles fourmis

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Urgent help, transformation maths (year 8)

3a. Fold the paper so the two triangles touch.
The line they fold is the answer.

3b. Take a needle or pin and pin down the paper
onto something you don't care about.
Put the pin between the two triangles.
Spin the paper halfway around to see it
looks the same.

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igloo myrtilles fourmis

jess1357

Guest

Re: Urgent help, transformation maths (year 8)

what is the transformation of y=-x