You throw a baseball straight up into the air at a velocity of 45 feet per second. You release the baseball at a height of 6.5 feet and catch it when it falls back to a height of 7 feet. (a) Use the position equation to write a mathematical model for the height of the baseball. (Let's represent the height in feet and let t represent the time in seconds.) X VI (b) Find the height of the baseball after 0.5 second. S = x ft (c) How many seconds is the baseball in the air? (Use a graphing utility to verify your answer. Round your answer to three decimal places.) t = 3 X sec Need Help? Read It Watch It