line reflections review mrs. erickson the coordinate axes x-axis y-axis origin: (0,0) (x,y)
TRANSCRIPT
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