Module 9: Lesson 9.4 Choosing a Method for Solving Quadratic Equations

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Presentation transcript:

Module 9: Lesson 9.4 Choosing a Method for Solving Quadratic Equations Can you answer the math riddle? Try solving by completing the square. Does that seem like good values to use? If the first 2 options don’t work, go to your good friend that never let’s you down…The Quadratic Formula. Solve the above quadratic equation by completing the square and quadratic formula. Which was better?

The height of an object moving under the force of gravity can be modeled by Jacob is throwing a tennis ball at a kite that is 42 feet up a tree in an attempt to knock it down. He can hurl the ball at 45 feet per second and releases the ball 4 feet above the ground. Will the ball reach the kite? How fast would Jacob have to throw to reach the kite?