Parallel & Perpendicular Slope
Symmetry
Rigid Transformations
Algebra Review
Vocabulary
100
Parallel lines have _____ slope.
equal
100
Which shapes have exactly two lines of reflection symmetry?
yellow, blue
100
Name the "cheap" terms for rotation, reflection and translation.
turn/spin, flip, slide
100
Foil:
(x+1)(x-13)
x2 - 12x + 13
100
What is the name of a 5 sided shape?
pentagon
200
Perpendicular lines have ___ ____ slopes.
opposite reciprocal
200
Describe the rotation symmetry of a square.
90o
200
Describe the following transformation:
translate left 6, up 2
200
Simplify
3(x - 1) - 4x + x2 -10
x2 - x - 13
200
Define "octagon"
8-sided polygon
300
Are the following lines parallel, perpendicular, or neither?
y = 4x - 3
y = -4 +7
neither
300
A regular polygon has 120o rotation symmetry. How many sides does this shape have? What is the most specific name for this shape?
3 sided equilateral triangle
300
describe how shape a transforms to b:
reflect over x axis
300
Solve for b:
5b-12=3b-10
b=1
300
Define decagon
10-sided shape
400
Write the equation of a line that is parallel to y = -x - 1 and goes through point (0,11).
y = -x + 11
400
A figure rotates 9 times and lands on itself each time. How many degrees is it rotating each time? What is the name of the figure?
40o nonagon
400
Rigid transformations preserve ____ and ____.
_____ is not a rigid transformation.
Size, shape. Dilation.
400
Evaluate when x = 3, y = -1
y2 + xy + 2x - 5
-1
400
A regular polygon has rotational symmetry of 60o
what is the name of this shape?
hexagon
500
Write the equation of a line that is perpendicular to y = 5 and goes through point (-1,0)
x=-1
500
Describe the regular hexagon's reflection and rotation symmetry:
6 lines of reflection symmetry
60o rotation symmetry
500
Describe how the red figure maps to the blue figure
180 rotation, ccw or cw
500
Solve and graph the following inequality:
10 − 4x >14 - 2x
x < -2
<-----o
500
Name all transformations; indicate which one is not rigid.
Translate, Rotate, Reflect.
Dilate is not rigid.