Open Up - Grade 7 - Mathematics - Unit 2 - Lesson 9 - Formative Library | Biblioteka

1

Do you belive the following relationship is proportional or not?
The weight of a stack of standard 8.5x11 copier paper vs. number of sheets of paper.

Yes it is porportional.

No it not is porportional.

7.RP.2.c

1

Do you belive the following relationship is proportional or not?
The weight of a stack of different-sized books vs. the number of books in the stack.

Yes it is porportional.

No it not is porportional.

7.RP.2.c

1

Every package of a certain toy also includes 2 batteries.
Are the number of toys and number of batteries in a proportional relationship? If so, what are the two constants of proportionality?

Yes 2 and \frac{1}{2}

No

Yes 3 and \frac{1}{4}

Yes 1 and 1

7.RP.2.c

1

Every package of a certain toy also includes 2 batteries.
Use t for the number of toys and b for the number of batteries to write two equations relating the two variables.

7.RP.2.c

1

Lin and her brother were born on the same date in different years. Lin was 5 years old when her brother was 2.
Find their ages in different years by filling in the table. (Show Your Work)
Is there a proportional relationship between Lin’s age and her brother’s age? (Multiple choice)

There is a proportional relationship.

There is no proportional relationship.

7.RP.2.c

1

A student argues that y=\frac{x}{9} does not represent a proportional relationship between x and y because we need to multiply one variable by the same constant to get the other one and not divide it by a constant.
Do you agree or disagree with this student?

Agree

Disagree

7.RP.2.c

1

Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2.
Select all of the following that are side lengths of Quadrilateral B.

7.RP.2.c

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Open Up - Grade 7 - Mathematics - Unit 2 - Lesson 9

Open Up - Grade 7 - Mathematics - Unit 2 - Lesson 9

Do you belive the following relationship is proportional or not?The weight of a stack of standard 8.5x11 copier paper vs. number of sheets of paper.

Do you belive the following relationship is proportional or not?The weight of a stack of different-sized books vs. the number of books in the stack.

Every package of a certain toy also includes 2 batteries.Are the number of toys and number of batteries in a proportional relationship? If so, what are the two constants of proportionality?

Every package of a certain toy also includes 2 batteries.Use t for the number of toys and b for the number of batteries to write two equations relating the two variables.

Lin and her brother were born on the same date in different years. Lin was 5 years old when her brother was 2.Find their ages in different years by filling in the table. (Show Your Work)Is there a proportional relationship between Lin’s age and her brother’s age? (Multiple choice)

A student argues that y=\frac{x}{9} does not represent a proportional relationship between x and y because we need to multiply one variable by the same constant to get the other one and not divide it by a constant. Do you agree or disagree with this student?

Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2. Select all of the following that are side lengths of Quadrilateral B.

Do you belive the following relationship is proportional or not?The weight of a stack of standard 8.5x11 copier paper vs. number of sheets of paper.

Do you belive the following relationship is proportional or not?The weight of a stack of different-sized books vs. the number of books in the stack.

Every package of a certain toy also includes 2 batteries.Are the number of toys and number of batteries in a proportional relationship? If so, what are the two constants of proportionality?

Every package of a certain toy also includes 2 batteries.Use t for the number of toys and b for the number of batteries to write two equations relating the two variables.

Lin and her brother were born on the same date in different years. Lin was 5 years old when her brother was 2.Find their ages in different years by filling in the table. (Show Your Work)Is there a proportional relationship between Lin’s age and her brother’s age? (Multiple choice)

A student argues that y=\frac{x}{9} does not represent a proportional relationship between x and y because we need to multiply one variable by the same constant to get the other one and not divide it by a constant. Do you agree or disagree with this student?

Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2. Select all of the following that are side lengths of Quadrilateral B.

Do you belive the following relationship is proportional or not?
The weight of a stack of standard 8.5x11 copier paper vs. number of sheets of paper.

Do you belive the following relationship is proportional or not?
The weight of a stack of different-sized books vs. the number of books in the stack.

Every package of a certain toy also includes 2 batteries.
Are the number of toys and number of batteries in a proportional relationship? If so, what are the two constants of proportionality?

Every package of a certain toy also includes 2 batteries.
Use t for the number of toys and b for the number of batteries to write two equations relating the two variables.

Lin and her brother were born on the same date in different years. Lin was 5 years old when her brother was 2.
Find their ages in different years by filling in the table. (Show Your Work)
Is there a proportional relationship between Lin’s age and her brother’s age? (Multiple choice)

A student argues that y=\frac{x}{9} does not represent a proportional relationship between x and y because we need to multiply one variable by the same constant to get the other one and not divide it by a constant.
Do you agree or disagree with this student?

Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2.
Select all of the following that are side lengths of Quadrilateral B.

Do you belive the following relationship is proportional or not?
The weight of a stack of standard 8.5x11 copier paper vs. number of sheets of paper.

Do you belive the following relationship is proportional or not?
The weight of a stack of different-sized books vs. the number of books in the stack.

Every package of a certain toy also includes 2 batteries.
Are the number of toys and number of batteries in a proportional relationship? If so, what are the two constants of proportionality?

Every package of a certain toy also includes 2 batteries.
Use t for the number of toys and b for the number of batteries to write two equations relating the two variables.

Lin and her brother were born on the same date in different years. Lin was 5 years old when her brother was 2.
Find their ages in different years by filling in the table. (Show Your Work)
Is there a proportional relationship between Lin’s age and her brother’s age? (Multiple choice)

A student argues that y=\frac{x}{9} does not represent a proportional relationship between x and y because we need to multiply one variable by the same constant to get the other one and not divide it by a constant.
Do you agree or disagree with this student?

Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2.
Select all of the following that are side lengths of Quadrilateral B.