Unit 1: Rigid Transformations and Congruence
What is a transformation that preserves the shape and size of a figure called?
What is a rigid transformation?
What is a dilation?
What is a transformation that changes the size of a figure but preserves its shape?
What is a proportional relationship?
What is a relationship where the ratio between two quantities remains constant?
What is a linear equation?
What is an equation that forms a straight line when graphed?
Name the three types of rigid transformations.
What are translations, rotations, and reflections?
In a dilation, what is the center of dilation?
What is the point from which the figure is enlarged or reduced?
How can you tell if a graph represents a proportional relationship?
What is that it passes through the origin (0,0)?
Solve the equation: 2x+3=7
What is x=2?
If triangle ABC is congruent to triangle DEF, what does that mean?
What does it mean that the corresponding sides and angles of both triangles are equal?
If two triangles are similar, what can you say about their corresponding sides?
What is the ratio of their corresponding sides is the same?
Write the equation of a line in slope-intercept form.
What is y=mx+b, where m is the slope and b is the y-intercept?
What are the solutions of the system of equations: y=2x+1 and y=−x+4?
What is (1, 3)?
Describe what happens to a shape when it is reflected over the y-axis.
The x-coordinates of the points in the shape change sign, while the y-coordinates remain the same.
How do you calculate the slope of a line given two points, (x₁, y₁) and (x₂, y₂)?
What is the formula m =(y2−y1)/(x2−x1)?
Write a proportional relation between x and y with a slope of 3.
What is y=3x?
How many solutions can a system of linear equations have?
What are either one solution, infinitely many solutions, or no solution?
How can you prove two figures are congruent using transformations?
By showing that one figure can be moved to coincide with the other through a series of rigid transformations.
What is the relationship between parallel lines and their slopes?
What is that parallel lines have the same slope?
What does the term "y-intercept" mean in a linear equation?
What is the point where the line crosses the y-axis?
What is the name of the method we learned for solving linear systems?
What is the substitution method?