Alg 2 QUIZ - Quadratic Standard Form & Vertex Form

y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.B.3

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Tags

CCSS.HSF-IF.C.7A

Describe the transformation of the graph

y = −(x + 5)² −2 compared to the parent function, y=x²?

• Reflect over x-axis, left 5, and down 2

• Reflect over y-axis, left 5, and up 2

• Reflect over x-axis, right 5, and down 2

• Reflect over x-axis, down 5, and right 2

What is the vertex form of a quadratic equation?

• x = -b/2a

• x = (-b ±√b² - 4ac)/2a

• y = ax² + bx + c

• y = a(x - h)² + k

What does the "h" identify in the vertex form equation?

y=a(x-h)²+k

• y-value of the vertex

• Axis of Symmetry and x-value of vertex

• Direction (facing up or down)

• x-intercept

What does the "a" identify in the vertex form of the equation?

y=a(x-h)²+k

• y value of the vertex

• Axis of Symmetry

• Direction of the parabola (opens up or opens down) and width

• x-intercept

What does the "k" identify in the vertex form of the equation?

y=a(x-h)²+k

• y-value of the vertex

• Axis of Symmetry

• Direction of the parabola (facing up or down).

• x-intercept

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

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

What is the axis of symmetry for the following equation?

y=x²+8x+9

• x=-8

• x=-4

• x=4

• x=2

What is the domain of the function?

• All Real Numbers

• x ≤ 4

• x ≥ 4

• x ≤ -4