Quadratic Function Characteristics

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes
• Axis of Symmetry
• Direction
• y-intercept

What piece of information is easy to identify by looking at the following equation?
y=4(x-4)²-7

• Y-intercept
• Zeroes
• Vertex

Which quadratic function is represented by the graph?

• y = 2(x - 4)² + 5
• y = 2(x + 4)² + 5
• y = -2(x - 4)² + 5
• y = -2(x + 4)² + 5

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• x = 8
• x = -8

Find the vertex of this quadratic.

• (-2, 4)
• (1, -5)
• (-1, 5)
• (-4, 2)

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

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

Given:
y = 2(x - 5)² + 6,
the vertex is

• (2,-5)
• (-5,6)
• (2,6)
• (5,6)

What is the axis of symmetry of
y= 2x²- 4x + 9?

• x = 1
• x = -1
• x = -2
• x = 4

Convert x² - 9x + 20 to factored form and find the zeros.

• (x-10)(x+2); x=-2, 10
• (x+4)(x+5); x=-5, -4
• (x-4)(x-5); x=4, 5
• Not factorable