medium · SAT Math
A ball is launched into the air, and its height above the ground, in feet, is modeled by h(t)=-16t^2+48t+4, where t is the time in seconds after launch. The ball reaches its maximum height 1.5 seconds after launch.
What is the ball's maximum height, in feet?
- 4 feet
- 40 feet
- 44 feet
- 36 feet
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