2. Solve.

3. Solving Quadratic Equations by Taking Square Roots

4. Solving with Square Roots 1.Get x 2 or binomial squared by itself 2.Take the square root of BOTH sides of the equals sign 3.Don’t forget the  sign 4.Simplify

5. Solve by Taking Square Roots

15. Falling Objects! Use h = -16t 2 + h 0 Height of the object after it has fallen # of seconds after the object is dropped Object’s initial height

16. Example The tallest building in the USA is in Chicago, Illinois. It is 1450 ft. tall. How long would it take a penny to drop from the top of the building to the ground?

17. Application Problem #2 For a period of 48 months, the average monthly operating costs for a small business C (in dollars) is approximated by the model C=0.55t 2 +550 where t is the number of months. During which month was the average operating cost $1430?

18. Homework Practice Sheet