What does a dilation do to a figure?
Makes them bigger or smaller.
Solve for x.
3x + 6 = 24
x = 6
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
Find the new coordinates of (3,-2) if you dilate the point with a scale factor of 4.
(12,-8)
Solve for x.
4(x+2) = 20
x = 3
Write the notation of point (x,y) after it moves 3 spots to the left and 7 spots up.
What is (x-3,y+7)?
Write the rule of point (x,y) after it is dilated with k=6.
(x,y) ---> (6x,6y)
Solve for p.
2(2p + 3) = 30
p = 6
A picture with one point (-3,4) was reflected over the y-axis. The new coordinates of the point are ____.
(3,-4)
Line segment CD was dilated by a scale factor of 2. The endpoints of the image are C' (4,0) and D' (6,2). What are the coordinates of the endpoints of the ORIGINAL line segment?
C(2,0) and D(3,1)
Solve for x.
4 - 6x < 2(2x + 3)
x > -1/5 or x > -0.2
Rectangle DEFG have the coordinates, D(5,5) E(5,8) F(8,8) and G(8,5). Reflect the figure over the x-axis.
D'(5,-5), E'(5,-8), F'(8,-8), G'(8,-5)
Graph ∆DEF after a dilation with a scale factor of 0.5. D(2,8) E(2,2) F(6,2)
D'(1,4), E'(1,1), F'(3,1)
Solve the system of equations using substitution.
3x - 5y = -12
y = 3
x=1 y=3
or (1,3)