PSABM6V8 - Student Facing Task---Acc7.5 Lesson 8 Slopes Don't Have to be Positive (8.EE.B)
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Which line doesn’t belong?

 

 

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Part A)

Noah put $40 on his fare card. Every time he rides public transportation, $2.50 is subtracted from the amount available on his card.

 

How much money, in dollars, is available on his card after he takes 0 rides?

 

Do not include dollars ($) in your answer.

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

How much money, in dollars, is available on his card after he takes 1 ride?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part C)

How much money, in dollars, is available on his card after he takes 2 rides?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

How much money, in dollars, is available on his card after he takes x rides?

 

Complete the equation below

Money available = _____

Use x as your variable.

Type your answer below (mathematical expression):
Part E)

Graph the relationship between amount of money on the card and number of rides.

 

 

Draw your graph on paper, take a picture, and upload it using the image upload icon 

If you do not have the ability to upload an image of your work, type "Graph is on paper."

Type your answer below:
Part F)

How many rides can Noah take before the card runs out of money?

 

Do not include units (rides) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part G)

Where do you see this number of rides on your graph?

 

Write your answer in the following format:

 

(x,y)

 

with no spaces.

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Part A)

Here is a graph that shows the amount on Han’s fare card for every day of last July.

 

 Describe what happened with the amount on Han’s fare card in July.

 

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Part B)

Plot and label 3 different points on the line.

 

Draw your graph on paper, take a picture, and upload it using the image upload icon 

 

If you do not have the ability to upload an image of your work, type "Graph is on paper."

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Part C)

Write an equation that represents the amount on the card in July, y, after x days.

 

Write the equation using the "WIRIS editor" button 

 

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Part D)

What value makes sense for the slope of the line that represents the amounts on Han’s fare card in July?

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part A)

Let’s say you have taken out a loan and are paying it back. Which of the following graphs have positive slope and which have negative slope?

 

Amount paid on the vertical axis and time since payments started on the horizontal axis.

 

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Select one:
Part B)

Let’s say you have taken out a loan and are paying it back. Which of the following graphs have positive slope and which have negative slope?

 

Amount owed on the vertical axis and time remaining until the loan is paid off on the horizontal axis.

Select one:
Part C)

Let’s say you have taken out a loan and are paying it back. Which of the following graphs have positive slope and which have negative slope?

 

Amount paid on the vertical axis and time remaining until the loan is paid off on the horizontal axis.

Select one:
Part A)

Elena borrowed some money from her brother. She pays him back by giving him the same amount every week. The graph shows how much she owes after each week.

Answer and explain your reasoning for each question.

 

What is the slope of the line?

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Explain how you know whether the slope is positive or negative.

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Part C)

What does the slope represent in this situation?

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Part D)

How much did Elena borrow?

 

Do not include dollars ($) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part E)

How much time will it take for Elena to pay back all the money she borrowed?

 

Fill in the blank with your answer:
It took her __ weeks to payback the $18.

 

Do not include units (weeks) in your answer.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):