4.1 Quadratic Functions in Standard form

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Find the axis of symmetry for

f(x) = x²- 8x + 15.

• x = -8

• x = 4

• y = 8

• y = -4

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

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

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

Tags

CCSS.HSA.REI.B.4

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

Graph the quadratic.

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A

Identify a: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Identify b: f ( x ) = -10x² + 8x + 7

• 10

• -10

• 8

• 7

Identify c: f ( x ) = -12x² - x - 9

• -12

• -1

• 0

• -9

What is the green dot on the parabola called?

• maximum
• minumum
• roots
• zeros

Tags

CCSS.HSF-IF.C.7A

• up

• down

Tags

CCSS.HSF-IF.C.7A