Algebra C&C Unit 4 Quadratic Graph Characteristics

Which quadratic function has a vertex below the origin and opens upward?

• y = -x² + 3

• y = -x² – 1 

• y = x² + 5

• y = x² – 2 

Which of the following functions of the form
 y = ax² produces the widest graph and opens down?

• y = 5x²

• y = -5x²

• y = -1/5x²

• y = 1/5x²

What is the vertex of the quadratic function
f(x) = 4x² + 16x + 7?

• (-2, -9)                                       

• (-0.5, 0)                                       

• (0, 7)

• (-0.5, -3.5)

When is the rocket at a height of 12 meters?

• 2 seconds

• 2 seconds and 4 seconds

• 2 seconds and 6 seconds

• 7 seconds

What are the roots of the function shown?

• (-3, 0) and (1, 0)

• (0, -3) and (1, -4)

• x = 1

• (2, 5) and (-4, 5)

What is the sign of the leading coefficient for this graph?

• positive

• negative

• Not enough information

• Sagittarius

Does the graph represent a min/max/both/neither?

• Minimum

• Maximum

• Both

• Neither

What is the minimum of the function?

• -9

• 0

• 4

• 8

What is the axis of symmetry?

• y = 4

• x = 0

• x = 4

• y= 7

What is the interval of increase for this function?