SOLUTION: A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function, s(t)= -16t^2+64t+160 models the ball’s height w

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function, s(t)= -16t^2+64t+160 models the ball’s height w      Log On


   

Question 1146072: A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function, s(t)= -16t^2+64t+160 models the ball’s height where s(t) is the height and t is the number of seconds after the ball is thrown.
(Note that s(t) is just function notation for the height of the ball and NOT s
multiplied by t; also note where the initial height and initial velocity values play a role in the equation.)
Which technique for solving a quadratic equation is going to be best for this
equation and why
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
.

Please notice,  that  THERE  IS  NO  any equation in your post.

The formula,  where you see the equality sign  " = ",  is  NOT  AN  EQUATION.

It is  THE  DEFINITION  of a function.


        Fake problem.

Answer by greenestamps(13198) About Me  (Show Source):
You can put this solution on YOUR website!


The post shows only a function giving the height in feet as a function of the time in seconds. There is no equation to solve until a height is specified.

The question of which technique is best for solving quadratic equations can't be answered. In general, the best way to solve problems involving quadratic equations is to use a graphing calculator, because you can answer many different questions about the function easily.

Of course, using a graphing calculator doesn't teach you anything about algebraic methods, or give you practice in using algebraic methods....