IM Grade 8 Unit 3 Test Review

Which value represents the slope in the following equation:

 $y=\frac{1}{2}x+8$  

• 8

• -8

•  $\frac{1}{2}$  
  

•  $\frac{1}{2}x$  
  

Tags

CCSS.HSF.IF.C.7

What is the y-intercept in the following equation:

 $y=-4x-5$  

• -5

• 5

• -4

• 4

What is the slope of the line represented by the equation y = 7 - x?

• 7

• 0

• 1

• -1

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

You have been given the equation 3x + 5y = 45. Which of the following points are on the graph of this line?

• (10, 3)

• (3, 10)

• (20, 6)

• (7, 5)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

For two weeks, the highest temperature each day was recorded in four different cities. Lines ℓ, m, n, and p are graphs of the temperature over time in Lubbock, Memphis, New Orleans, and Phoenix. Which statement is true?

• The high temperature in Memphis increased as time passed.

• The high temperature in Pheonix steadily increased as time passed.

• At the beginning, the high temperature in New Orleans is higher than in Lubbock.

• The high temperatures in Lubbock and Memphis both increased as time passed.

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

Lin earns twice as much money per hour as Diego. Diego earns twice as much money per hour as Jada.

Select all the graphs that could represent how much Lin, Diego, and Jada earn for different amounts of time worked.

• 
• 
• 
• 
• 

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

Which of the following is the equation for the PURPLE line?

• 
  

  $y=2x+5$

• $y=-1$

• $x=3$

• $y=-\frac{1}{2}x-3$

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Which of the following is the equation for the BLUE line?

• 
  

  $y=2x+5$

• $y=-1$

• $x=3$

• $y=-\frac{1}{2}x-3$

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Which of the following is the equation for the GREEN line?

• 
  

  $y=2x+5$

• $y=-1$

• $x=3$

• $y=-\frac{1}{2}x-3$

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Which of the following is the equation for the RED line?

• 
  

  $y=2x+5$

• $y=-1$

• $x=3$

• $y=-\frac{1}{2}x-3$

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7