Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 5

By Formative Library

Last updated over 2 years ago

9 Questions

Solve each of these equations.

2(x+5)=3x+1

8.EE.7.a

8.EE.7.b

Solve each of these equations.

3y-4=6-2y

8.EE.7.a

8.EE.7.b

Solve each of these equations.

3(n+2)=9(6-n)

8.EE.7.a

8.EE.7.b

Clare was solving an equation, but when she checked her answer she saw her solution was incorrect. She knows she made a mistake, but she can’t find it.
 Where is Clare's mistake and what is the solution to the equation?

8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.

\frac{1}{9}(2m-16)=\frac{1}{3}(2m+4)

8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.

-4(r+2)=4(2-2r)

8.EE.7.a

8.EE.7.b

Solve each equation, and check your solution.

12(5+2y)=4y-(6-9y)

8.EE.7.a

8.EE.7.b

Here is the graph of a linear equation.
Select all true statements about the line and its equation.

The equation of the line is y = \frac{5}{4}x+\frac{1}{4}.

One solution of the equation is (-1,1).

The equation of the line is y = \frac{1}{4}x+\frac{5}{4}.

There are infinitely many solutions.

One solution of the equation is (1,\frac{3}{2}).

One solution of the equation is (3,2).

There are 2 solutions.

8.EE.7.a

8.EE.7.b

A participant in a 21-mile walkathon walks at a steady rate of 3 miles per hour. He thinks, “The relationship between the number of miles left to walk and the number of hours I already walked can be represented by a line with slope .” 

Do you agree with his claim?

Yes, I agree with the claim.

No, I do not agree with the claim.

8.EE.7.a

8.EE.7.b

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