Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Last updated about 1 year ago

8 questions

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Last updated about 1 year ago

8 questions

8.EE.7.a

8.EE.7.b

Solve 3(x-4)=12x

8.EE.7.a

8.EE.7.b

Draggable item		Corresponding Item

8.EE.7.a

8.EE.7.b

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Andre’s mistake and what is the solution to the equation?

8.EE.7.a

8.EE.7.b

8.EE.7.a

8.EE.7.b

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
How long is the ribbon?

8.EE.7.a

8.EE.7.b

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
What is the slope of the line? (If your answer is a fraction leave it as one.)

8.EE.7.a

8.EE.7.b

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
Explain what the slope of the line represents and why it fits the story.

8.EE.7.a

8.EE.7.b

"Source: Open Up Resouces (Download for free at openupresources.org.)"

Draggable item		Corresponding Item
6 = 11x		Original equation
x = \frac{6}{11}		Distributive property
2(-3x+4) = 5x +2		Add 6x to each side
-6x + 8 = 5x +2		Subtract 2 from each side
8 = 11x + 2		Multiply each side by \frac{1}{11}

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Solve 3(x-4)=12x

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Andre’s mistake and what is the solution to the equation?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
Explain what the slope of the line represents and why it fits the story.

Mai and Tyler work on the equation \frac{2}{5}b+1=-11 together. Mai's solution is b = -25 and Tyler's is b = -28. Here is their work:
Do you agree with their solutions?

Solve 3(x-4)=12x

Match each of the following equations with an explaination.

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Andre’s mistake and what is the solution to the equation?

Choose the equation that has solutions (5, 7) and (8, 13).

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
Explain what the slope of the line represents and why it fits the story.

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 4

Solve 3(x-4)=12x

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it. Where is Andre’s mistake and what is the solution to the equation?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.Explain what the slope of the line represents and why it fits the story.

Mai and Tyler work on the equation \frac{2}{5}b+1=-11 together. Mai's solution is b = -25 and Tyler's is b = -28. Here is their work:Do you agree with their solutions?

Solve 3(x-4)=12x

Match each of the following equations with an explaination.

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it. Where is Andre’s mistake and what is the solution to the equation?

Choose the equation that has solutions (5, 7) and (8, 13).

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.Explain what the slope of the line represents and why it fits the story.

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Andre’s mistake and what is the solution to the equation?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
Explain what the slope of the line represents and why it fits the story.

Mai and Tyler work on the equation \frac{2}{5}b+1=-11 together. Mai's solution is b = -25 and Tyler's is b = -28. Here is their work:
Do you agree with their solutions?

Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but he can’t find it.
Where is Andre’s mistake and what is the solution to the equation?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
How long is the ribbon?

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
What is the slope of the line? (If your answer is a fraction leave it as one.)

A length of ribbon is cut into two pieces to use in a craft project. The graph shows the length of the second piece, x, for each length of the first piece, y.
Explain what the slope of the line represents and why it fits the story.