Rigid Transformations & Congruence
This image is an example of what type of transformation?
Rotation
What is the scale factor of this image?
2
What is the y-intercept of the equation: y=1/2x-5/3
-5/3
How many solutions do these systems have?
a. 3/4x-4 3/4x+4
b. 7x+1/2 8x+1/2
c. 3x-6 3(x-2)
a. no solutions
b. one solution
c. infinite solutions
How many colors are in a rainbow?
7
What are the new coordinates of a point A(2,5) reflection over the x-axis?
(2 , -5)
If triangle A'B'C' is the dilation of triangle ABC are the triangles similar or congruent?
Similar
What do the m and b stand for in y=mx+b?
m = slope
b = y-intercept
In the linear equation y=-1/5x+8, if x=10, what is y=?
y=6
What is it Called to Move in water?
What is the image of point (2,5) under the translation that shifts (x,y) to (x+3, y-2)?
(5 , 3)
True or False: Dilations always increase the length of line segments
False; Dilations can increase or decrease line segments
What is the slope of the line passing through (-3 , 9) and (9, 11)?
1/6
Solve the equation:
2x-3=2(6-x) + 7x
x=-3
What is the most visited place in the summer?
Disney World
Figures that have proportional side lengths and congruent angles are called what?
Similar Figures
Figures related by dilation have the same...
Corresponding angle measures
Cody has $40 saved in his savings account and wants to earn more. He begins babysitting for the neighbors and gets paid $15 per hour. He saves all of his earnings. Write the equation for the total savings for x hours.
y=15x+40
What is a solution to the system:
x=-2
y=x+5
(-2 , 3)
What is the traditional birthstone for the month of July?
Ruby
A line that acts as a mirror so that corresponding points are the same distance from the line
Line of reflection
When scale factors are whole numbers the image gets ____.
When scale factors are fractions the image gets _____.
Smaller
Which graphs shows the following situation: On Friday, Corinne has 3 apples on her tree. Each day from this point her tree grows 2 more apples.
B
Planet Z Gym has a joining fee of $45 and a monthly rate of $25. Muscles R Us charges a $90 membership fee and $10 a month to use their gym.
Write the equations that represent the two gyms if x is the number of months of membership and y is the total cost of joining the gym.
Planet Z Gym:
Muscles R Us:
After five months, which gym will cost more? Show your work to support your answer.
After how many months will Planet Z Gym and Muscles R Us cost the same? Show your work to support your answer.
1. 45 + 25x 90+10x
2. Planet Z Gym
3. 3 months
Seen on all sunscreen bottles, what does the term "SPF" stand for?
Sun Protection Factor