What is a transformation that maps all points of a figure the same distance in the same direction.
100
For the given points A'B' is a translation of AB. Write a rule to describe each translation.
A(-1,5) B(2,0) A'(3,3) B'(6,-2)
What is (x,y) --> (x+4, y-2)
100
What is angle of rotation?
What is the positive number of degrees a figure rotates
100
What is a line of symmetry?
What is dividing the figure in congruent halves.
100
Define Dilation.
What is an enlargement of the original shape
200
you are visiting san fransico. from your hotel near union square,you walk 4 blocks east and 4 blocks north to the wells fargo history museum. then you walk 5 blocks west and 3 blocks north to the cable car barn museum. where is the cable car barn museum in relation to your hotel.
What is 1 block west and 7 blocks north.
200
For the given points A'B' is a translation of AB. Write a rule to describe each translation.
A (-9,-4) B(-7,1) A'(-4,-3) B'(-2,2)
What is (x,y)--> (x+5, y+1)
200
Point P (x,y)is rotated about the origin by 135 degrees and the by 45 degrees. What are the coordinates of the image of point P.
What is (-x,-y)
200
If a figure has a point of symmetry must it also have rotational symmetry?
What is Yes, point symmetry means it is it's own image for a 180 degree rotation and that satisfies the def. of rotational symmetry.
200
Describe the scale factor of a reduction.
What is a number between zero and one.
300
write an equation for the line through A perpendicular to the given line;
A(1,-2); x=-2
What is y=-2
300
A map of Alberta, Canada, uses the scale 1cm. = 25km. On the map, the distance from Calgary to Edmonton is 11.1 cm. How far apart are the two cities?
What is 277.5km.
300
Compare rotating a figure about a point to reflecting the figure across a line. How are the transformations alike? How are they different?
What is Alike; Both transformations are isometries.
Different; Rotations preserve orientations but reflections are reversed.
300
Determine the scale drawings dimensions of each room using the scale of 1/4 in. = 1 ft.
Kitchen;12 ft. by 16 ft.
What is 3 in. by 4 in.
300
a dilation has a center of (0,0). find the image of each point for the given scale factor;
N(-4,7); 0.2
What is N' (-0.8,1.4)
400
write an equation for the line through A perpendicular to the given line;
A(-1,2); y=x
What is y=-x+1
400
Yes or No?
When you reflect a figure across a line does every point on the preimage move the same distance?
What is No
400
Triangle A'B'C' is a rotation image of triangle ABC about point O. Describe how to find the angle of rotation.
What is Drawing line AO and line A'O and then measure angle AOA'
400
Determine the scale drawings dimensions of each room using the scale of 1/4 in. = 1 ft.
Bedroom; 8 ft. by 10 ft.