IB Math HL Chapter 2 Pre Test

State the domain:

• (-oo, 7) U (7, oo)

• (-oo, -7) U (7, oo)

• (7, oo)

• [7, oo)

State the domain:

• (-oo, 1) U (1, oo)

• (-oo, -1) U (-1, 1) U (1, oo)

• (-oo, oo)

• (-oo, -1] U [-1, 1] U [1, oo)

Is this mapping a function and how can you tell?

• Yes its a function cause all the numbers have lines

• No it's not a function because there a 5 in both ovals

• No it's not a function because the x value 5 has 2 outputs.

• No it's not a function because the y value 5 has 2 inputs.

Tags

CCSS.8.F.A.1

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1
• f(x) = (x + 2)² - 1
• f(x) = -(x + 2)² - 1
• f(x) = -(x - 2)² - 1

Tags

CCSS.HSF-IF.C.7A

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

Tags

CCSS.HSF-IF.C.7A

Solve the equation using the quadratic formula.

• A 
• B 
• C 
• D 

Tags

CCSS.HSA-REI.B.4B

How many solutions does this graph have?

• one
• two
• no solutions
• cannot be determined

Solve 2(x-1)² = 32

• x= -3, 5
• x= -4, 4
• x= 3, 5
• x= 2, 6

Tags

CCSS.HSA-REI.B.4B

What is the discriminant?

• b²-4ac
• b²/2a
• 4ac
• b²±4ac

Tags

CCSS.HSA-REI.B.4B