Quadratic Functions Review (Vocab and Critical Values)

What is the standard form of a Quadratic?

• ax²+bx+c
• a(x-h)²+k
• ax+by=c
• b²-4ac

The graph of a quadratic function is called a __________ .

• parabola

• line

• vertex

• axis of symmetry

Determine if the function graphed has a maximum or a minimum value and identify that value.

• maximum at -1

• minimum at -1

• maximum at 4

• minimum at 4

Tags

CCSS.HSF-IF.C.7A

Once you've found the x-value of a Vertex, how do you find the y-value?

• Substitute x in b² - 4ac
• Substitute x in original equation
• Substitute 0 for x
• Substitute 0 for y

Find the vertex of 
f(x) = -x² - 4x + 12

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8
• x=1
• x=-1
• x=2

Tags

CCSS.HSA.REI.B.4

What is the axis of symmetry of the following equation?

f(x) = x² + 6x + 3

• x = 2

• y = 2

• x = -3

• y = -3

A parabola has a vertex at (-3,2). Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum
• opens up with a minimum
• opens down with a maximum
• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

Does y = - 4x² have a

maximum or minimum value?

• maximum

• minimum