Quadratic Applications Population

This is a _______________ function.

• Linear

• Exponential

• Quadratic

Given the following real-world situation, determine which type of function would best represent it. A softball is hit with a bat when it is 2.5 feet off the ground, then 0.5 seconds later reaches a maximum height of 12 feet.

• linear

• quadratic

• exponential

  growth

• exponential

  decay

Determine whether the situation described is linear, quadratic or exponential. Then, write the equation that models the situation. The area of a rectangle with a length that is three inches less than twice its width, w.

When I want to find the maximum or minimum height of an object, I should_____

• Set the equation = 0 and solve.

• Use x = (-b/2a) as my answer.

• Substitute x = 0 into the equation.

• Find the y-coordinate for the vertex.

• 22 meters

• 1.89 seconds

• 2 seconds

• 2 meters

• 18 meters

An object flies through the air and follows a parabolic path. What does the y-axis represent? 

• time 

• height from the ground 

• horizontal distance 

• money 

Does this graph have a maximum or minimum?

• Minimum

• Maximum