381 Test 1-3 Review

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• same

• always 7.

Tags

CCSS.8.EE.B.5

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

Tags

CCSS.8.EE.B.6

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

Tags

CCSS.8.EE.B.6

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5

Tags

CCSS.8.EE.B.6

Are the two linear equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Tags

CCSS.8.EE.C.8B

Which of the following lines is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

(HINT: use y1~mx1+b)

• y=1/6x +25/6

• y = 1/6x + 4

• y = -6x - 2

• y = -6x + 4

Which of the following represents the equation of the line passing through (-4, 5) PERPENDICULAR to the line y = -1/2x + 5/2? (HINT: use y1~mx1+b)

• y = 2x + 13

• y = 2x + 5

• y = -1/2x + 3

• y = -1/4x + 11/2

A local carpenter sells bookshelves for $900 each. He has to sell between 5 and 10 bookcases each month in order to meet his sales goal. Find the domain and range of this situation

• Domain: {5, 6, 7, 8, 9, 10}
  Range: {900, 1080, 1260, 1440, 1620, 1800}

• Domain: {900, 1080, 1260, 1440, 1620, 1800}
  Range: {5, 6, 7, 8, 9, 10}

Sara works between 7 and 20 hours a week at a carwash. She earns $50 in tips plus $8 an hour. Sara's earning can be represented by the function e=50+8h.

Is this situation continuous or discrete? And what is the domain/range?

• Range

  Domain: {7, 8, 9, 10, ..., 20}
  Range: {106, 107, 108, ..., 210}

• Range

  Domain: {106, 107, 108, ..., 210}
  Range: {7, 8, 9, 10, ..., 20}

What is the domain of the graph?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5