Standard Form and Vertex Form of Quadratics

Find the a, b, and c values for

f(x) = x²- 8x + 15.

• a=1, b=8, c=15

• a=1, b=-8, c=15

• a=0, b=-8, c=15

• y = -4a=0, b=8, c=15

What is a, b, and c in 3x² -5x+ 4 = y?

• a = 3, b = -5, c = 4

• a = 3, b = 5, c = 4

• a = 3, b = 5, c = -4

• a = 3, b = -5, c = -4

The axis of symmetry is a line that goes through the...

• y-intercept
• any random point
• vertex
•  x-axis or y-axis

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

Tags

CCSS.HSF-IF.C.7A

What formula do you use to find the x-value of the vertex of a parabola and the axis of symmetry?

• x = 3a / 2c
• x = -b / 5a
• x = 3a
• x = -b / 2a

Tags

CCSS.HSA.REI.B.4

Find the axis of symmetry for
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?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

Tags

CCSS.HSF-IF.C.7A

What should you do to find the y-value of the vertex of a parabola?

• Find the x-value, then plug it in to the equation to find the y-value.
• Guess a number based on the Guacamole Principle

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

Find the vertex  y = x² - 2x - 5

• V(-2, 10)
• V(-1, 15)
• V(1, -6)
• V(1, -12)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7