Quadratics and Projectile Motion

In Projectile Motion Quadratic Word Problems, what does the y-value always represent?

• Time

• Height

• Distance

• Total

The function h(t) = -16t² + 64t models the approximate height "h" of an object "t" seconds after it is launched into the air. How many seconds will it take for the object to reach it's maximum height? (Only enter the number)

The function h(t) = -3t² + 12t + 4 models the approximate height "h" of an object "t" seconds after it is launched into the air. How high off the ground was the object launched to begin with? (Only enter the number)

The function h(t) = -5t² + 120t models the approximate height "h" of an object "t" seconds after it is launched into the air. What was the maximum height the object reached. How many seconds will it take for the object to reach it's maximum height? (Only put the number)

An object is launched directly upward at 64 feet per second from a platform 80 feet high.  

 Write the function for the height of this object at any given time (t seconds).

Mathematical Equivalence

ON

(a)  

• A

• B

• C

• D

• 64

• 1

• 3

• 4

• 32

• 2

• 68

• 1.5

• 5

• 2.5

If the function h(t) = -16t² + 160t represents the relationship between the height "h" of and object "t" seconds after it is launched, how many seconds will it take for the object to hit the ground?

If the function h(t) = -16t² + 160t represents the relationship between the height "h" of an object "t" seconds after it is launched, how many seconds will it take for the object to reach it's maximum height?

The function h(t) = 125t - 5t² represents the height "h" of an object "t" seconds after it was launched into the air from the ground. How many seconds will it take for the object to hit the ground? Find the roots (Input only the number)