Translation
What does x+8 mean
8 right
What rotation does not switch coordinates
180
Reflect A (2,4) over the x axis
A' (2,-4)
Statement for the last line
AB + CD = AB + DE
CD=DE
Subtraction
1 and 8 are
alternate exterior
What does <2,8> mean
2 right up 8
Rotate A (4,7) 90 degrees clockwise
A'(-7,4)
Reflect over the y axis the point A (6,2)
A' (-6,2)
AB = CD
CD + ED= 180
AB+ ED =180
Substitution
3 and 5 are
same side interior
Translate the point A (2,5) x+3, y-4
A' (5,1)
Rotate A (-4,5) 180 degrees
A' (4,-5)
Reflect over the line x=2 the point A (3,1)
A'(-1,1)
AD=BC, BC=DE then AD=DE
Transitive
2 and 7 are
Translate the point A (-4, 5) to x-3, y-1
A' (-7,4)
Rotate A (-4,5) 270 degrees counter clockwise
A' (5,4)
Reflect over the line y=2 the point A ( 5,-1)
AB + BC= AC
Segment Addition Postulate
solve for x
x= 5
2 left 2 up
90 degrees clockwise or 270 counter clockwise
Reflect the triangle A (6,5) B (-1,-2) C (3,0) over the line x=2
A' (-2,5) B' (5,-2) C'(1,0)
<ABC+ <CBD=<ABD
Angle Addition Postulate
Solve for x and y
x=5 y=5