The Number System
Expressions & Equations
Functions
Geometry
Statistics & Probability
Random
100
A number has a decimal that goes on forever without repeating.
Is the number rational or irrational?
Irrational
100
Solve for x .
2x+7=19
Double Your Points! What properties of equality were used to solve for x ?
x=6
Double: The properties that were used are:
1. The subtraction property of equality.
2. The division property of equality.
100
Does this table represent a function? How do you know?
Yes, because each input has only one output.
100
A figure is slid 5 units to the right without turning or flipping.
What transformation is being described?
Translation
100
A scatter plot shows that as study time increases, quiz scores also increase.
Is this a:
- positive association,
- negative association,
- or no association?
Positive Association
100
What has been the most popular number this school year?
67
200
Evaluate: sqrt121
11
200
Solve for x :
5x-11=31
Leave your answer as a mixed number or a decimal.
8 2/5 or 8.4
200
A function is shown by the equation: y=3x+2 .
What is the slope and what is the y-intercept?
Slope: 3
Y-intercept: 2
200
Two angles form a straight line. One angle measures 126° .
What is the measure of the other angle?
Double Your Points! Correctly note if these angles are complementary or supplementary.
54°
Double: These angles are supplementary.
200
A scatter plot shows points that are very close to a straight line.
Would a line of best fit likely make good predictions? Explain why or why not.
A line of best fit would likely make good predictions because the data points stay close to a linear pattern (the line).
200
What phrase do students use to encourage themselves and others to focus on class?
Lock in
300
Simplify: 2^3*2^4
Write your answer in both exponential form and standard form.
Exponential Form: 2^7
Standard Form: 128
300
What is the slope of the line that passes through the points (3,4) and (6,11) ?
Leave your answer in fractional form.
7/3
300
Which function has the greater rate of change (slope)?
Function A: y=5x-4
Function B:
Double Your Points! What is the slope of each function?
Function A
Double:
Function A: Slope = 5
Function B: Slope = 3
300
Using the Pythagorean Theorem: a^2+b^2=c^2 Find c .
a=5
b=12
c=13
300
A student wanted to know the favorite lunch of the kids in our school. To get their data, they asked all the 8th grade boys who come to campus what their favorite lunch is.
Is the student's data biased or representative? What could they do to improve their data?
It's biased.
They should ask:
1. Boys and girls
2. Kids who do their work from home AND on campus
3. Students from 6th, 7th, and 8th grades instead of just 8th grade.
300
What started as a creepypasta and will soon be released as a full-length movie?
Backrooms
400
Which number is larger?
A. 5*10^6
B. 8*10^5
Double Your Points! Write the correct answer in standard form.
Answer: A. 5*10^6
Double: 5,000,000
400
How many solutions does this equation have?
4(x+2)=4x+8
Infinitely many solutions
400
What type of function is this?
y=x^2
Nonlinear or Parabolic
400
A cylinder has a radius of 3 units and a height of 5 units.
Leave your answer in terms of pi or round the answer to nearest hundredth.
Note: Use the pi button in the calculator if you choose to get a decimal answer.
In terms of pi : 45pi cubic units.
Approximated to a decimal: 141.37 cubic units.
400
A scatter plot shows that as the number of absences increases, grades usually decrease. A line of best fit shows a negative association and predicts that students with 2 absences usually earn about 90%.
Would a student with 8 absences most likely earn:
- about 95%,
- about 80%,
- or about 70%?
Explain your reasoning.
About 70%.
Reasoning: Answers vary, but something like, "The scatter plot shows a negative association, so grades tend to decrease as absences increase. Since 8 absences is four times more than 2 absences, the predicted grade should be much lower than 90%."
400
What large rodent is known for being calm, friendly, and relaxing in hot springs in many internet memes?
Capybara
500
A square has an area of 50 square units. x^2=50
1. Between which two whole numbers does the side length fall?
2. What is a good approximate of the side length, rounded to the nearest tenth place?
1. 7 and 8
2. sqrt50 ≈ 7.1
500
Solve the system of equations:
(3,5)
500
A gym membership costs $20 to join and $15 per month after that.
1. Write an equation to model the situation.
2. Use your equation to find how much a person will spend if they continue at the gym for 4 months.
1. y=15x+20
2. $80
500
What is the value of x ?
Double Your Points! What knowledge of lines and triangles did you use to find the value of x ?
x=70°
Double:
1. Since straight lines add up to 180° , I knew that the missing angle had to be 180°-120°=60° .
2. I also know that the interior angles of a triangle always add up to 180° , so 50°+60°+x°=180° . x has to be 70° .
500
A class collected the data for this Two-Way Frequency table:
1. How many students do not play sports and do not like pizza?
2. What percentage of students who like pizza also play sports?
3. Based on the table, do students who like pizza tend to play sports or not?
1. 12 students
2. 18/27*100=67%
3. Students who like pizza tend to play sports because 18 out of 27 students who like pizza play sports, which is about 67%.
500
What blue alien is known for causing chaos and saying, "This is my family. I found it, all on my own. It's little, and broken, but still good. Yeah, still good."?
Double Your Points! What does Ohana mean?
Stitch
"Ohana means family. Family means nobody gets left behind or forgotten."