Quadratics in Standard Form

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

• (0, 6)
• (0, -6)
• (6, 0)
• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

What is the vertex?
f(x) = -x² - 4x + 12.

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

The standard form of a quadratic function is

• ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

What is the y-intercept?  $x^2-3x+9$  

• (9, 0)

• (0, 9)

• (1, 0)

• (-3, 0)

• (0, -3)

Tags

CCSS.HSF-IF.C.7A

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Find the Vertex:
f(x) = x² + 10x + 21

• (-5,-4)
• (-5,10)

• (10,21)
• No Real Solution

Find the Vertex:
y = x² + 6x + 2

• (-3,-7)
• (1,6)
• (6,2)
• (-3, 7)

Find the vertex.
  y = -9x² - 162x  - 731

• (9, - 6)

• (18, 22)

• (-9, -2)

• (-9, 5)

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

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