Quadratic Function Understanding

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

What do we call the highest or lowest point of a quadratic?

• parabola

• vertex

• graph

• point

Solve by factoring!

• -2, 4

• -8

• ±8

• No real solution

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Identify the vertex of the following parabola.
y = x² − 4x + 1

• (2,-3)

• (1/3, 4)

• (-2, 3)

• (-2,13)

Without graphing state whether the following quadratic function opens upward or downward?

y = -3x² + 2x - 4

• Upward

• Downward

What is the formula to find the axis of symmetry of a parabola?

What are the zeros of the parabola? 

• 1, 5

• 3, -5 

• 3, 0

• -6, 1

What is another name for the x-intercepts of a quadratic?

• y-intercept

• Zeros

• x-axis

• They don't have another name