The Path of Flight (Trajectory) of a Football Thrown by a Quarterback

question 15

Short Answer

The path of flight (trajectory) of a football thrown by a quarterback is described by the following function: $\quad y ( x ) = - 0.002 x ^ { 2 } + 0.7 x + 7$
where $y =$ vertical position of football relative to the ground $( \mathrm { m } )$
$x =$ horizontal position of football relative to launch position (m)
How high above the ground is the football when it is 30 yards downfield from the quarterback?
a. $17.05 \mathrm {~m}$
b. $17.5 \mathrm {~m}$
c. $8.95 \mathrm {~m}$
d. $34.1 \mathrm {~m}$

---

Definitions:

Insomnia

A sleep disorder where individuals have difficulty falling or staying asleep.

Resistance

The tendency to block the free expression of impulses and primitive ideas—a reflection of the defense mechanism of repression.

Psychoanalyst

A professional who practices psychoanalysis, a therapeutic technique originally developed by Sigmund Freud to treat mental disorders by exploring the unconscious mind, dreams, and childhood experiences.

Troubled Marriage

A marital relationship experiencing persistent problems that negatively affect the well-being of the partners.