Factor by MARFing.
Facotor by MARFing.
Solve the equation.
You hit a baseball straight up into the air. The baseball is hit with an initial vertical velocity of 80 feet per second when it is 3 feet off the ground.
a. Write an equation that vies the height (in feet) of the baseball as a function of the time (in seconds) since it was hit.
b. After how many seconds does the ball reach a height of 99 feet?
c. Does the ball reach a height of 99 feet more than once? Justify your answer.