Flashback 9-6-12 1. A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost.

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Presentation transcript:

Flashback A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727 typical miles? A. $ B. $ C. $ D. $ E. $ When x = 3 and y = 5, by how much does the value of 3x^2 – 2yexceed the value of 2x^2 – 3y ? F. 4 G. 14 H. 16 J. 20 K. 50

Joke of the day You have 10 fish, 5 drown, 3 come back to life. How many fish do you have?

Stop counting smart one. Fish can’t drown

Solving quadratic equations Factoring Extracting Square Roots Completing the square Quadratic Formula Using a graphing calculator

Fill in the blank If a*b=0, then ______________ or __________.

Graphing to find zeroes Press graph. What do you see? Use Calc, zero

Now, algebraically Factor

First, Graphically Then by extracting the square

Graphically Completing the square

Graphically Quadratic Formula

Homework p. 50 Ex. 7, 12, 14, 17, 20, 24

Exit Slip Complete p. 50 Ex. 2,4,26, 30, 35 Place on your homework sheet.