Graphs of Quadratics Review

• (0, -80)

• (0, 10)

• (0, -44)

• (0, 3)

What is the vertex and axis of symmetry of f(x) = - x² + 6x - 2

• Vertex: (3,7) AOS: x = 3

• Vertex: (3,7) AOS: y = 3

• Vertex: (-2,6) AOS: x = -2

• Vertex: (2,6) AOS: x = 2

Which function best describes the graph

• y = 2x² + 12x -16

• y = - 2x² - 12x - 16

• y = 2x² -12x +16

• y = -2x² + 12x +16

Find the vertex

• (1,2)

• (2,1)

• (0,0)

• (-1,2)

What is the y-intercept of the graph?

• (0,9)

• (-1,9)

• (0,8)

• (0,2)

What are the solutions to this graph? Check all that apply.

• (-4, 0)

• (-1, -9)

• (2,0)

• (0, -8)

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

4 and 2
-4 and -2
4 and -2
-4 and 2

• 4 and 2

• -4 and -2

• 4 and -2

• -4 and 2

A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds.

For which interval is the ball's height always decreasing?

Find the range

• All real numbers

• y ≥ -2

• y ≤ -2