Warm-up Solve..

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Presentation transcript:

Warm-up Solve.

Homework Review

EOCT Review Question of the Day

CCGPS Geometry Day 51 (10-23-13) UNIT QUESTION: How are real life scenarios represented by quadratic functions? Today’s Question: When does a quadratic have an imaginary solution? Standard: MCC9-12..A.REI.4b

Solving Quadratic Equations by Taking Square Roots

Solving with Square Roots Get x2 or binomial squared by itself Take the square root of BOTH sides of the equals sign Don’t forget the  sign Simplify

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Solve by Taking Square Roots

Use h = -16t2 + h0 Falling Objects! Height of the object after it has fallen Object’s initial height # of seconds after the object is dropped

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?

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=0.55t2+550 where t is the number of months. During which month was the average operating cost $1430?

Homework Practice Sheet