Open Up Resources, Unit 3 8th Grade Math, Mid-Unit Assessment
8 points
8
Question 1
1.
The difference between a proportional relationship and a linear relationship is...
5 points
5
Question 2
2.
Write an equation that shows the relationship between grams of honey and grams of salt for a bakery recipe.
salt | honey
10 g | 14 g
25 g | 35 g
We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
7 points
7
Question 3
3.
Olivia sold water bottles over four days. If the quantities are proportional, what is the constant of proportionality?
Just write the number.
5 points
5
Question 4
4.
The graph below represents the number of balls thrown over time. What is the constant of proportionality?
Hint: Pay attention to the scale!
Just write the number for your answer.
6 points
6
Question 5
5.
Three runners are training for a marathon. One day, they all run about ten miles, each at their own constant speed.
This is the graph of Runner #1's pace.
How long in minutes does it take Runner #1 to run 1 mile?
Hint: Pay attention to the axes!
Just write the number for your answer.
6 points
6
Question 6
6.
Three runners are training for a marathon. One day, they all run about ten miles, each at their own constant speed.
The equation that relates Runner #2’s distance (in miles) with time (in minutes) is t = 6.75d.
How long in minutes does it take Runner #2 to run 1 mile?
Just write the number for your answer.
6 points
6
Question 7
7.
Three runners are training for a marathon. One day, they all run about ten miles, each at their own constant speed.
Runner #3's information is in the table:
How long in minutes does it take Runner #3 to run 1 mile?
Just write the number for your answer.
4 points
4
Question 8
8.
Which of the three runners has the fastest pace?
7 points
7
Question 9
9.
A "U-Pick" Blueberry farm costs $12 to enter.
Two pounds of blueberries costs $20.
Which of these graphs shows the relationship between what a visitor pays and how many pounds of blueberries they purchase?
8 points
8
Question 10
10.
Write the equation of the lne shown to the right in the form y=kx.
Hint: Pay attention to the scale!
Write your answer without spaces.
5 points
5
Question 11
11.
Which one of these relationships is different than the other three?
6 points
6
Question 12
12.
Andrew and Sarah are tracking the number of steps they walk. Andrew records that he can walk 6000 steps in 50 minutes. Sarah writes the equation y=118x where y is the number of steps and x is the number of minutes she walks, to describe her step rate.
How many steps does Andrew walk per minute?
Just write the number.
6 points
6
Question 13
13.
Andrew and Sarah are tracking the number of steps they walk. Andrew records that he can walk 6000 steps in 50 minutes. Sarah writes the equation y=118x where y is the number of steps and x is the number of minutes she walks, to describe her step rate.
How many steps does Sarah walk per minute?
Just write the number.
8 points
8
Question 14
14.
Andrew and Sarah are tracking the number of steps they walk. Andrew records that he can walk 6000 steps in 50 minutes. Sarah writes the equation y=118x where y is the number of steps and x is the number of minutes she walks, to describe her step rate.
This week, Andrew and Sarah each walk for a total of 5 hours. Who walks more steps? How many more?
8 points
8
Question 15
15.
James wants to buy flowers for his mom for her birthday, so he checks four stores. Store A gives a table of their prices, store B gives a graph, Store C gives an equation, and Store D gives you a flyer.
Which flower shop gives the best price for flowers?