Parabola Word Problems Ii

Polynomials 1. A ball is thrown vertically upward. Its height (in feet) after x seconds is given by: h(x) = 80x-16x 2 a.) What is the height of the ball at x =3 seconds. V

b.) What is the height of the ball at x =
2. A ball is thrown upward from a building 30 meters high. Its approximate height above the ground is given by the polynomial: h(x) = 30 + 25x - 5x2 a.) What is the height of the ball at x = 3 seconds. b.) What is the height of the ball at x = 5 seconds. c.) How high does the ball get? (Its maximum height) d.) After how many seconds does it reach its highest point? e.) After how many seconds does the ball hit the ground?

3.) An object is thrown upward from a height of 30 meters. The polynomial that gives its height after x seconds is: h(x) = 30 + 29.4x - 4.9x2 a.) What is the height of the ball at x = 1 seconds. b.) What is the height of the ball at x = 5 seconds. c.) How high does the ball get? (Its maximum height) d.) After how many seconds does it reach its highest point? e.) After how many seconds does the ball hit the ground?