Estimating slope of line of best fit

Repeating decimals

3 Topics
|
3 Quizzes
Square roots & cube roots

5 Topics
|
6 Quizzes
Irrational numbers

3 Topics
|
2 Quizzes
- Classify numbers: rational & irrational
Approximating irrational numbers

4 Topics
|
3 Quizzes
- Comparing irrational numbers with a calculator
Exponents with negative bases

6 Topics
|
3 Quizzes
Exponent properties intro

3 Topics
|
4 Quizzes
Negative exponents

2 Topics
|
1 Quiz
1. Negative exponents
2. Negative exponent intuition
- Negative exponents
Exponent properties (integer exponents)

2 Topics
|
2 Quizzes
1. Multiplying & dividing powers (integer exponents)
  1. Multiply & divide powers (integer exponents)
2. Powers of products & quotients (integer exponents)
- Powers of products & quotients (integer exponents)
Working with powers of 10

2 Topics
|
2 Quizzes
1. Multiplying multiples of powers of 10
  1. Multiplication and division with powers of ten
2. Approximating with powers of 10
  1. Approximating with powers of 10
Scientific notation intro

2 Topics
|
1 Quiz
1. Scientific notation example: 0.0000000003457
2. Scientific notation examples
- Scientific notation
Arithmetic with numbers in scientific notation

4 Topics
|
2 Quizzes
- Multiplying & dividing in scientific notation
- Adding & subtracting in scientific notation
Scientific notation word problems

3 Topics
|
1 Quiz
- Scientific notation word problems
Equations with variables on both sides

4 Topics
|
2 Quizzes
Equations with parentheses

1 Topic
|
2 Quizzes
1. Equations with parentheses
  1. Equations with parentheses
- Equations with parentheses: decimals & fractions
Number of solutions to equations

4 Topics
|
2 Quizzes
- Number of solutions to equations
- Number of solutions to equations challenge
Equations word problems

2 Topics
|
1 Quiz
1. Sums of consecutive integers
2. Sum of integers challenge
- Sums of consecutive integers
Graphing proportional relationships

2 Topics
|
1 Quiz
1. Rates & proportional relationships example
2. Rates & proportional relationships: gas mileage
  1. Rates & proportional relationships
Solutions to linear equations

4 Topics
|
2 Quizzes
- Solutions to 2-variable equations
- Complete solutions to 2-variable equations
Intercepts

5 Topics
|
2 Quizzes
- Intercepts from a graph
- Intercepts from an equation
Slope

8 Topics
|
3 Quizzes
Intro to slope-intercept form

2 Topics
|
1 Quiz
1. Intro to slope-intercept form
2. Worked examples: slope-intercept intro
- Slope-intercept intro
Writing slope-intercept equations

5 Topics
|
2 Quizzes
- Slope-intercept equation from graph
- Slope-intercept from two points
Functions

7 Topics
|
3 Quizzes
Linear models

7 Topics
|
3 Quizzes
Comparing linear functions

6 Topics
|
1 Quiz
- Compare linear functions
Constructing linear models for real-world relationships

5 Topics
|
1 Quiz
- Writing linear functions word problems
Recognizing functions

9 Topics
|
2 Quizzes
- Recognize functions from tables
- Recognize functions from graphs
Linear and nonlinear functions

5 Topics
|
2 Quizzes
- Linear & nonlinear functions
- Interpreting graphs of functions
Intro to systems of equations

3 Topics
|
1 Quiz
- Solutions of systems of equations
Solving systems with substitution

6 Topics
|
1 Quiz
- Systems of equations with substitution
Number of solutions to systems of equations

5 Topics
|
1 Quiz
- Number of solutions to a system of equations algebraically
Systems of equations word problems

7 Topics
|
2 Quizzes
- Age word problems
- Systems of equations word problems
Angles between intersecting lines

4 Topics
|
3 Quizzes
Triangle angles

7 Topics
|
3 Quizzes
Pythagorean theorem

3 Topics
|
4 Quizzes
Pythagorean theorem application

4 Topics
|
5 Quizzes
Pythagorean theorem and distance between points

1 Topic
|
1 Quiz
1. Distance formula
- Distance between two points
Pythagorean theorem proofs

4 Topics
Volume

3 Topics
|
4 Quizzes
Transformations intro

3 Topics
|
1 Quiz
- Identify transformations
Translations

3 Topics
|
1 Quiz
- Translate points
Rotations

2 Topics
|
2 Quizzes
1. Rotating points
2. Determining rotations
- Rotate points (basic)
- Determine rotations (basic)
Reflections

3 Topics
|
1 Quiz
- Reflect points
Properties & definitions of transformations

3 Topics
|
3 Quizzes
Dilations

5 Topics
|
2 Quizzes
- Dilations: scale factor
- Dilate triangles
Congruence and similarity

4 Topics
|
2 Quizzes
- Congruence & transformations
- Similarity & transformations
Introduction to scatter plots

1 Topic
|
1 Quiz
1. Constructing a scatter plot
  1. Making appropriate scatter plots
Interpreting scatter plots

2 Topics
|
2 Quizzes
1. Example of direction in scatterplots
2. Scatter plot: smokers
- Positive and negative linear associations from scatter plots
- Describing trends in scatter plots
Estimating lines of best fit

4 Topics
|
3 Quizzes
Two-way tables

3 Topics
|
4 Quizzes

Math 8th grade

Estimating slope of line of best fit

Quiz Summary

Information

Results

Results

Categories

1. Question

A company that makes an exercise machine asked some of its recent customers how long they have owned their machines, and how many hours per month they currently use their machines.

Which of the following is the best estimate of the average change in hours of exercise per month that was associated with a 1 month increase in ownership?

Choose 1 answer:

2. Question

The scatter plot below shows the relationship between latitude of cities and their average January temperature.

Which of the following is the best estimate of the average change in temperature associated with a 1∘ increase in latitude?

Choose 1 answer:

3. Question

Jacob distributed a survey to his fellow students asking them how many hours they’d spent playing sports in the past day. He also asked them to rate their mood on a scale from 0 to 10, with 10 being the happiest.

Which of the following is the best estimate of the average change in mood rating associated with a 1 hour increase in hours playing sports?

Choose 1 answer:

4. Question

The scatter plot below shows the average rent (in dollars per month) for a 1-bedroom apartment in New York City each year between 2000 and 2013.

Which of the following is the best estimate of the average change in rent each year? Choose 1 answer:

5. Question

The scatter plot below shows the relationship between hours spent on video games and hours spent on homework last week for students in Ginny’s class.

Which of the following is the best estimate of the average change in homework time that was associated with a 1 hour increase in time spent on video games?

Choose 1 answer:

6. Question

The plot shown below describes the relationship between the age of drivers and the number of car accidents per 100 drivers in the year 2009.

Which of the following is the best estimate of the average change in the number of accidents associated with a 1 year increase in age?

Choose 1 answer:

7. Question

A panel of judges was asked to judge the quality of different kinds of potato chips. The relationship between their ratings and the price of the chips is shown in the scatter plot below.

Which of the following is the best estimate of the average change in ratings that is associated with a $1 increase in price?

Choose 1 answer:

8. Question

The scatter plot below shows the relationship between the percentage of American adults who smoke and years since 1945.

During this time period, the percentage of adults who smoked changed each year by about

Choose 1 answer:

9. Question

Jacob distributed a survey to his fellow students asking them how many hours they spent on the Internet in the past day. He also asked them to rate their mood on a scale from 0 to 10, with 10 being the happiest.

The scatter plot below shows the mood rating for each amount of time online.

Which of the following is the best estimate of the average change in mood rating associated with a 111 hour increase in hours online?

Choose 1 answer:

10. Question

Shira’s math test included a survey question asking how many hours students spent studying for the test. The scatter plot below shows the relationship between how many hours students spent studying and their score on the test.

Which of the following is the best estimate of the average score change associated with a 1 hour increase in study time?

Choose 1 answer:

Which of the following is the best estimate of the average change in hours of exercise per month that was associated with a month increase in ownership?

Jacob distributed a survey to his fellow students asking them how many hours they’d spent playing sports in the past day. He also asked them to rate their mood on a scale from

Which of the following is the best estimate of the average change in rent each year?

Choose 1 answer:

Which of the following is the best estimate of the average change in mood rating associated with a 1 hour increase in hours online?