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Homework: Section 13.8If an object is propelled upward from a height of s feet at an initial velocity of v feet per second, then its height h after t seconds is given by the equation h = −16t 2+vt+s, where h is in feet. If the object is propelled from a height of 8 feet with an initial velocity of 96 feet per second, its height h is given by the equation h = −16t 2+96+8.After how many seconds is the height 116 feet?Using the equation h = −16t 2+vt+s, substitute the known values for h, v, and s: h = 116, v = 96, and s = 8. 116 = −16t 2+ 96 + 8