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

Lin was looking at the equation 2x-32+4(3x-2462)=14x. She said, “I can tell right away there are no solutions, because on the left side, you will have 2x+12x and a bunch of constants, but you have just 14x on the right side.” Do you agree with Lin?

• Yes, I agree that Lin is correct.
• No, I disagree that Lin is correct.

Tags

8.EE.7.a

Han was looking at the equation 6x-4+2(5x+2)=16x . He said, “I can tell right away there are no solutions, because on the left side, you will have 6x+10x and a bunch of constants, but you have just 16x on the right side.” Do you agree with Han?

• Yes, I agree that Han is correct.
• No, I disagree that Han is correct.

Tags

8.EE.7.a

Solve each of these equations. 3(x-5)=6

Tags

8.EE.7.a

The points (-2,0) and (0,-6) are each on the graph of a linear equation. Is (2,6) also on the graph of this linear equation?

• Yes, the point is on the graph.
• No, the point is not on the graph.

Tags

8.EE.7.a

In the picture triangle A1B1C1 is an image of triangle ABC after a rotation. The center of rotation is E. What is the length of side AB?

Tags

8.EE.7.a

In the picture triangle A1B1C1 is an image of triangle ABC after a rotation. The center of rotation is E. What is the measure of angle D1? Explain how you know.

Tags

8.EE.7.a