11/18 video check

Identify a: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

This is the standard form of a quadratic function:

f ( x ) = ax² + bx + c

• True

• False

Identify b: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Identify c: f ( x ) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down
• Neither; it opens to the right.
• Neither; it opens to the left.

What is the maximum/minimum of a parabola called?

• vertex
• point
• top
• bottom

What do we call the graph of a quadratic function?

• parabola
• linear
• cubic
• sinusoidal

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

Where is the axis of symmetry for this parabola?

• x = −1
• x = 0
• y = 3
• x = −3

What is the formula above primarily used for?

• Finding the axis of symmetry from standard form
• Finding the vertex from standard form
• Finding the vertex from vertex form
• Finding the vertex from standard form