Linear Equations
What does it mean if an equation simplifies to 0=0?
Infinitely many solutions
True or false: rational numbers do not repeat and do not terminate (end).
False
What is the sum of the interior angles of a triangle?
180°
This transformation slides a figure without changing its size or orientation.
Translation
What word describes two figures that have the same shape and size?
Congruent
What is the solution to the equation x+5=12x + 5 = 12x+5=12?
7
What type of number is pi?
Irrational
If two angles form a linear pair, what is their total measure?
180°
A figure is turned 90° clockwise about the origin. What transformation is this?
Rotation
Which rigid motion can move a figure from one location to another without resizing it?
Translation, rotation, or reflection
How many solutions does the equation 2x=102x = 102x=10 have?
1
Can an irrational number be written as a fraction?
No
What theorem relates the legs and hypotenuse of a right triangle?
The Pythagorean Theorem
When a figure is flipped over a line, what type of transformation occurs?
Reflection
True or False: A dilation can be used to prove two figures are congruent.
False
What is the solution to 4x+1=2x+94x + 1 = 2x + 94x+1=2x+9?
4
Is 0.333… a rational or irrational number?
Rational
If the rise is 4 and the run is 2, what is the slope?
2
Which transformation changes the size of a figure but keeps its shape the same?
Dilation
If one figure can be mapped onto another using only rigid motions, the figures are _____.
Congruent
Does the equation 2(x+3)=2x+62(x + 3) = 2x + 62(x+3)=2x+6 have one solution, no solution, or infinitely many solutions?
Infinitely many solutions
Is the square root of 16 rational or irrational?
Rational
If the legs of a right triangle are 6 and 8, what is the length of the hypotenuse?
10
If a triangle is reflected across the x-axis, what happens to its y-coordinates?
The y-values change sign (positive ↔ negative)
Name two rigid motions that could show two triangles are congruent.
Any two: translation, rotation, reflection