Golf Ball Trajectory Analysis

The video tutorial explains how to use a TI-84 calculator to model the trajectory of a golf ball on Uranus using quadratic regression. It covers data entry, graphing, and calculating key points like initial height, maximum height, and time to impact. The tutorial provides step-by-step instructions for using the calculator's features to solve the problem graphically and manually.

What is the gravity on Uranus compared to Earth?

• 32 feet per second squared

• 26 feet per second squared

• 28 feet per second squared

• 30 feet per second squared

Which key sequence is used to clear old data from the calculator columns?

• Stat, Clear, Enter

• Up, Clear, Enter

• Vars, Clear, Enter

• Mode, Clear, Enter

What is the quadratic function derived from the data?

• h(t) = -14t^2 + 87t + 29

• h(t) = -14t^2 + 90t + 29

• h(t) = -15t^2 + 87t + 30

• h(t) = -13t^2 + 85t + 28

What is the initial height of the golf ball when t = 0?

• 0 feet

• 29 feet

• 87 feet

• 14 feet

How can you find the initial height without using the graphing calculator?

• Use the intersection feature

• Evaluate h(t) at t = 0

• Set h(t) equal to zero

• Use the maximum feature

What is the maximum height reached by the golf ball?

• 87 feet

• 164.16 feet

• 102 feet

• 153 feet

At what time does the golf ball reach its maximum height?

• 2.50 seconds

• 4.00 seconds

• 3.11 seconds

• 5.00 seconds

Which feature of the calculator is used to find the maximum height?

• Intersection feature

• Zero feature

• Maximum feature

• Value feature

How long does it take for the golf ball to hit the ground?

• 7.00 seconds

• 6.53 seconds

• 3.11 seconds

• 5.00 seconds

Which method can be used to solve for when the golf ball hits the ground manually?

• Intersection feature

• Maximum feature

• Value feature

• Quadratic formula