Which of the following scenarios would use a quadratic equation to solve?
• The trajectory of a balloon that rises 2 feet per second is modeled to find how high the balloon will be in 5 minutes.
• An accountant models the growth of a savings account that doubles every month to find how much will be in the account in 10 years.
• A coach models the trajectory of a ball to find out how high the player is kicking the ball.
• A child places a quarter into a piggy bank every week.
The scenario that would use a quadratic equation to solve is:
• A coach models the trajectory of a ball to find out how high the player is kicking the ball.
This scenario involves finding the height of the ball at different points in time, which can be modeled using a quadratic equation.