8 Final Exam Review

Solve by substitution.

• (1, 0)

• (1, 1)

• (0, 1)

• (0, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The scatter plot shows the number of items purchased at a store and the total cost of the items. Based on the equation of the trend line, how much would you expect 15 items to cost?

• $37.50

• $34.50

• $32.50

• $39.50

Write the equation for the line.

• y= -1x+3
• y= 4x+3
• y=1/4x+3
• y= -4x+3

Determine the slope and y-intercept.         y = 3/2x + 3

• slope: 5   y-intercept:  (0,3) 
• slope: 3/2   y-intercept:  (0,3) 
• slope:  4  y-intercept:  (0,3/2)
• slope: 1/5   y-intercept:  (0,5) 

What is the correlation?

• Negative correlation
• No correlation
• Positive correlation
• All of the above

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

Tags

CCSS.HSF-IF.C.7A

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

Tags

CCSS.HSF-IF.C.7A

What is the significance of the ordered pair (0, -2) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

Tags

CCSS.HSF-IF.C.7A

Which function has an absolute minimum?

• 
• 
• 
• All of the above

Tags

CCSS.HSF-IF.C.7A

Identify the increasing interval:

• (0, 4)
• (1, 0) U (1, 4)
• (-1, 1)
• (-∞, -1) U (1, ∞)

Tags

CCSS.HSA.REI.D.10