Line reflections

Line ReflectionsReviewMrs. Erickson

The Coordinate Axesx-axisy-axisOrigin: (0,0)(x,y)The Coordinate AxesGraph, then find the area:

A (3,2) B (-3,2) C (-3,-2) D (3,-2)

A (4,1) B (1,5) C (-2,1)

The Coordinate AxesGraph, then find the area:

A (3,2)B (-3,2)C (-3,-2)D (3,-2)

yxA (3,2) B (-3,2) C (-3,-2)D (3,-2)64A=base x heightA=6x4A=24The Coordinate AxesGraph, then find the area:

A (4,1)B (1,5)C (-2,1)

yxA (4,1)B (1,5) C (-2,1)A= x base x heightA= x 6 x 4A=1246The Coordinate AxesSolve: (x,y) (2-x,y)

(0,1) _____

(-4,3) _____

(5,-1) _____

(2,1) (6,3) (-3,-1) Line ReflectionsLine ReflectionsLines of SymmetryLine ReflectionsDraw all lines of symmetry:

Rectangle

Square

Equilateral TriangleLine ReflectionsDraw all lines of symmetry on the following words:

MOMDADHIKEDCHECKRADARTOOTMOMTOOTRADARCHECKHIKEDDADNo lines of symmetryNo lines of symmetryLine ReflectionsUnder a line reflection:

distance is preserved

angle measure is preserved

midpoint is preserved

collinearity is preservedrk = the reflection across line kLine Reflections in the Coordinate PlaneReflections in the y-axis

Plot:A (1,2)B (3,4)C (1,5)

Under a reflection in the y-axis:(x,y) _____

y-axisReflections in the x-axis

Plot:A (1,2)B (3,4)C (1,5)

Under a reflection in the x-axis:(x,y) _____

Line Reflections in the Coordinate Planex-axisReflections in the line y=x

Plot:A (1,2)B (3,4)C (1,5)

Under a reflection in the line y=x:(x,y) _____

Line Reflections in the Coordinate Planey=xPop Quiz

just kidding