Unformatted text preview: 1 Discuss the solutions of 2x 2 + 5x + 2 = 0. 2 Discuss the solutions of x 2 − 4x + 7 = 0. 3 Discuss the solutions of 4x 2 − 20x + 25 = 0. Applications Outline Quadratic Equations Solving Quadratic Equations Applications An Application Example
The height of an rock thrown upward from the ﬂoor of a canyon
106 ft deep, with an initial velocity of 120 ft/sec, is given by the
h = −16t 2 + 120t − 106
where h is the height of the rock after t seconds. How long will it
take the rock to rise to the top of the canyon wall?...
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