Transformations
Linear Equations (y=mx+b)
Solving Equations & System of Equations
Functions
Tunes Tuesday
100
What is the vocabulary word for a transformation that flips or mirrors the preimage?
A reflection
100
What do the m and the b stand for in slope-intercept form (y=mx+b)?
The m stands for slope and the b stands for the y-intercept
100
What is the solution to this system of linear equations?
(-2, 1)
100
Fill in the blank:
A function is a rule that assigns each input _______________
A function is a rule that assigns each input (exactly) one output.
100
Fill in the blanks:
In this week's parody, Ms. Steliotes rewrites "Let It Snow" to "Let ___ ______"
Let Us Math
200
What are the three types of rigid transformations?
Translations, reflections, and rotations
200
What is the slope of this line? 
2/6 or 1/3 or 0.33...
200
How many solutions are there to the equation 3(x + 4) = 2x + 12 + x
A) All/infinite solutions
B) No solutions
C) One solution, which is x = 4
A) All/infinite solutions
200
Is this relation a function? (Yes or No)
No
It fails the vertical line test, meaning that for some input (x), there are multiple outputs (y).
200
In my parody of Be Like That, Dilate Like That, I explain that the preimage of a shape gets bigger when the scale factor is:
A) Exactly 1
B) Greater than 1
C) Less than 1
B) Greater than 1
The line from the song is "It gets bigger when the factor's up above 1 or greater"
300
What is the name of the only non-rigid transformation we learned that resizes preimages?
A dilation
300
What is the y-intercept of this line?
3.5 because the line crosses the y-axis at the point (0, 3.5)
300
Solve the equation 6x + 1 = 4x + 9
x = 4
300
Is this relation a function? YES or NO
No
The input blue has two different outputs
300
I made a parody of the song Cha Cha Slide, a popular song at dances and family events, in the beginning of the year. Instead of calling it the Cha Cha Slide however, I called in the Cha Cha _______, using the technical math word for a transformation that slides shapes.
Cha Cha Translation
400
Which sequence of transformations maps triangle A to triangle A"?
A) Reflect across the x-axis and then rotate 180 degrees about the origin
B) Reflect across the y-axis and then rotate 180 degrees about the origin
C) Reflect across the x-axis and then translate down 5 units and right 3 units
D) Reflect across the y-axis and then translate down 5 units and right 3 units
D) Reflect across the y-axis and then translate down 5 units and right 3 units
400
What is the slope of this line?
A) 5/3
B) 6/2 = 3
C) -8/4 = -2
D) 2/6 = 1/3
B) 6/2 = 3
400
What is the definition of a solution to an equation?
The value for the variable that makes the equation true
400
Is this relation a function? EXPLAIN (required for credit)
No, because the input 0 has two different outputs (-1 and 0)
400
In my "New Rules" parody, I describe the steps involved in solving multi-step equations. The first thing I need to do when I solve multi-step equations is to get rid of the parentheses.
Name both the property we use to get rid of the parentheses and what operation that means we do.
Distributive Property- Multiply
"1: Distribute the co. Mult. the coefficient by each term like a pro
2: Move to the right. Add so the x's on one side.
3: Undo to end. You know you gotta isolate by inverting the trend."
500
What sequence of transformations that maps quadrilateral ABCD onto A'B'C'D'?
There is more than one correct solution, but be careful to make sure that each vertex in the preimage maps to its corresponding point in the image (A to A')
A reflection across the y-axis followed by a dilation with scale factor 0.5 centered at the origin
(other correct responses are possible- for full credit, students must include the line of reflection and the scale factor)
500
Write the equation of this line in slope-intercept form
y= 4/3x - 4
(or equivalent equations)
500
Solve the equation -4(x + 2) + 2 = 6x + 8
x = -1.4
500
Is this relation a function? EXPLAIN (required for credit)
Yes, for each input, there is only one output.
It does not matter that 3 and 5 have the same output. All that matters if that when I "press" the 1, 3, 5, and 7 buttons, I know exactly what output I'll get.
500
My first Tunes Tuesday video of the school year, which I showed on the first day of school, explained how great math class was. What song did I make a parody of the first week of the year?