Pop Quiz Vertex Form

Which best describes the vertex of a parabola?

• Any point on the parabola.

• A point on the x-axis.

• The highest or lowest point of a parabola

• A point on the y-axis.

Which equation best represents 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 the vertex?

• (2, 4)

• (3, -1)

• (0, 8)

• (4, 2)

Identify the vertex of f(x) = -2(x+1)² + 3

• (h,k)

• (3, 1)

• (-1,-3)

• (-1,3)

What steps transform the graph y = x² to y = 2(x+2)² - 5?

• Flatter, shifted 2 units left and 5 down

• Steeper, shifted 5 units left and 2 down

• Steeper, shifted 2 units left and 5 down

• Flatter, shifted 2 units left and 2 down

What steps transform the graph y = x² to y = -1/2(x-4)² + 1?

• Flatter, shifted 4 units right and 1 unit up

• Reflection, Flatter, shifted 4 units right and 1 unit up

• Reflection, Flatter, shifted 4 units left and 1 unit up

• Steeper, shifted 4 units right and 1 unit down

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

Does the graph of this equation open up or down? f(x) = -(x + 3)² - 5

• up

• down

What is the orange line called?

• Line of Solutions

• Roots

• Vertex

• Axis of Symmetry

What is the range of this function?