Standard Form PRACTICE C

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the vertex?
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

Where is the axis of symmetry for this parabola?

• x = −1
• x = 0
• y = 3
• x = −3

Tags

CCSS.HSF-IF.C.7A

Which equation matches the graph?

HINT: You will have to find the Axis of Symmetry.

• 
• 
• 
• 

Does
y = -4x²
have a maximum or minimum value?

• maximum
• minimum

Tags

CCSS.HSF-IF.C.7A

What is the formula to find the x-value of the vertex of a parabola?

• x = -b/2

• x = -b

• x = -b / (2a)

• x = -b / 2

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down
• neither
• Can't tell

Tags

CCSS.HSF-IF.C.7A

Which point is an example of a y-intercept?

• (3,4)
• (-2,8)
• (0,4)
• (5,0)

Tags

CCSS.HSA.REI.D.10

If we have the equation y=ax²+bx+c, how can we can find the x-coordinate of the vertex?

• -a
• b/2a
• -b/2a

What do we call the graph of a quadratic?

• line
• vertex
• equation
• parabola

Tags

CCSS.HSF-IF.C.7A