Key Features of Quadratics

What is the vertex?
f(x)=x²-8x+3

• (-8, 3)
• (4, -13)
• (4, 0)
• (-4, 51)

What is the y-intercept?
f(x)=x²-8x+3

• (3, 0)
• (-8, 3)
• (4, -13)
• (0, 3)

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?
f(x)=x²-8x+3

• x = 4
• x = 3
• x = -8
• x = -13

Which of the following equations has a graph that opens down?

• f(x) = x²-5x-3
• f(x) = -2x²+6x+9
• f(x) = 4x²
• f(x) = (x-1)²+2

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts?
f(x) = 2(x-4)(x+2)

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

Tags

CCSS.HSF-IF.C.7C

What is the vertex?
f(x) = -3(x+1)²-5

• (1, -5)
• (-1, 5)
• (1, 5)
• (-1, -5)

What is the axis of symmetry?
f(x) = -3(x+1)²-5

• x = -5
• x = 1
• x = -1
• x = 3

What can you tell from an equation in standard form? (without doing any calculations)
f(x)=ax²+bx+c

• x-intercepts
• vertex
• y-intercept

What can you tell from an equation in vertex form?
f(x)=a(x-h)²+k

• y-intercepts
• x-intercepts
• vertex

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSA.CED.A.2