Show:
Reflections
Translations
dilations
dilations/scale factor
rules
100
When you REFLECT an image, it:
Flips
100
when you translate a figure, you are:
sliding it
100
When you dilate a figure, you:
enlarge or reduce it
100
figure a(1, 5) b(3, 5) c(4, 6) becomes a'(2, 10) b'(6, 10) c(8, 12). Is it an enlargement or reduction?
enlargement.
100
(x, y)-> (x+a, y+a) is the rule for:
translations
200
What is the rule for Reflecting over the X axis
(x, y) -> (x, -y)
200
What is the rule for translations?
(x, y) ->(x+a) (y+b)
200
What does the K stand for and what do you have to do?
Scale factor; Multiply the x and y
200
figure a(4, 6), b(8, 10) c(4, 10) has been dilated to become a'(2, 3), b(4, 5), c(2, 5). Is it an enlargement or reduction?
reduction
200
(x, y)-> (x, -y) is the rule for:
reflection over the X axis
300
What is the rule for reflecting over the Y axis
(x, y)-> (-x, y)
300
What is the rule for moving a unit 4 units to the right and 3 units up?
(x, y) -> (x+4, y+3)
300
what is the rule of dilations?
(x, y) -> (kx, ky)
300
points a(5, 10) b(4, 8) c(6, 9) became a'(10, 20) b'(8, 16) c'(12, 18). What is the scale factor?
2
300
(x, y) ->(-x, y) is the rule for:
reflection over the Y axis
400
Reflect points a(-3, 3) b(4, -1) c(0, 5) over the X axis
a(-3, -3) b(4, 1) c(0, -5)
400
What is the rule for moving a figure 8 units to the left and 5 units down?
(x, y) -> (x-8, y-5)
400
What happens when you have a scale factor greater than one?
it enlarges
400
points a(1, 3) b(1, 4) c(2, 4) became a' (11,33) b'(11, 44) c'(22, 44) became. What is the scale factor?
11
400
(x, y) -> (kx, ky) is the rule for
Dilation
500
Reflect a(-3, 4) b(3, 4) c(4, 5) over the Y AXIS
a(3, 4) b(-3, 4) c(-4, 5)
500
What is the rule for moving a figure 10 units up and 7 units to the left?
(x, y) -> (x-7, y+10)
500
What happens when you have a scale factor less than one?
it reduces
500
points a(5, 2) b(4, 7) c(6, 9) became a'(2.5, 1) b'(2, 3.5) c'(3, 4.5). what is the scale factor?
.5 or 1/2
500
When it comes to the rules of reflection, when it states (x, y) -> (-x, y) or (x, y) -> (x, -y), it means to
change the sign from negative to positive or positive to negative