reflect shapes in a mirror line defined by an equation. - ppt video online download

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three across to mirror line three across from mirror line reflect shapes in a given mirror line … We already know how to … three across to mirror line three across from mirror line
reflect shapes in a mirror line defined by an equation.
Mathematics. GCSE Topic Reminders. Learning how to … reflect shapes in a mirror line defined by an equation.
reflect shapes in a given mirror line … We already know how to … three across to mirror line. three across from mirror line.
We already know how to … x = 3. x = 3. x y. (3 , 7) (3 , 1) (3, -5)
We already know how to … y = -5. x y. (7 , -5) (2 , -5) y = -5. (-3, -5)
We already know how to … x = y. x y. x = y. (7 , 7) (2 , 2) (-3, -3)
We already know how to … x = -y. x y. (-3, 3) (2, -2) (7, -7) x = -y.
x = 1 goes through (1,0) (1,4) (1,-3) etc. Draw the line given by the equation. Don’t. assume these are mirror lines. x = 1.
Draw the line given by the equation. x = 1. The image of each point is directly opposite the mirror line and the same distance away. Reflect each point in turn in the mirror line.
Draw the line given by the equation. x = 1. GCSE 2 marks for correct image. (1 mark if wrong vertical mirror line used) Reflect each point in turn in the mirror line. Join up the new points.
Draw the image of triangle A after reflection in the line y = x. Label the image B. y = x goes through (0,0) (4,4) (-3,-3) etc. Draw the line given by the equation. x = 1.
Draw the image of triangle A after reflection in the line y = x. Label the image B. Reflect each point in turn in the mirror line. Draw the line given by the equation. The image of each point is directly opposite the mirror line and the same distance away.
Draw the image of triangle A after reflection in the line y = x. Label the image B. Reflect each point in turn in the mirror line. Draw the line given by the equation. GCSE 2 marks for correct image. (1 mark if two points correct) Join up the new points.