Quadratics Standard Form

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.C.8

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 vertex?

• (1, 2)

• (2, 1)

• (0, -4)

• (3, 0)

How many times does the parabola cross the x-axis?

• 3

• 2

• 0

• 1

Where does the parabola cross the x-axis?

• -1 and -3

• 1 and -3

• 1 and 3

• -4

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x= -3

Tags

CCSS.HSA.REI.B.4

Does the following quadratic equation have a maximum or minimum value? How can you tell?

y = x² + 2x - 3

• Minimum value, because the "a" value is positive

• Maximum value, because the "b" value is positive

• Maximum value, because the "a" value is positive

• Minimum value, because the "c" value is negative

What is the domain of the function?

• D:{ x > 3}
• D:{x < 3}
• D:{all real numbers}
• D:{ -1 < x < 5}

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Where does the parabola cross the x-axis?

• x = -1 & x = 5

• x = 1 & x = 5

• x = 3

• x = 1

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)
• (-2, -7)
• (2, -7)
• (-7, -2)

Tags

CCSS.HSA.REI.B.4