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Flashback 9-26-12. Quadrilateral ABCD is drawn on the standard ( x , y ) coordinate plane as shown below, with points E and F on AD . Point G is the center of rectangle BCEF . How many coordinate units long is AG ? A. B. C. D . E . 11. Joke of the day.
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Flashback 9-26-12 • Quadrilateral ABCD is drawn on the standard (x,y) coordinate plane as shown below, with points E and F on AD. Point G is the center of rectangle BCEF. How many coordinate units long is AG? • A. • B. • C. • D. • E.11
Joke of the day You hear a news report on TV, and it says…At John F. Kennedy International Airport today, a Caucasian male (later discovered to be a high school mathematics teacher) was arrested trying to board a flight while in possession of a compass, a protractor and a graphical calculator.
According to law enforcement officials, he is believed to have ties to the Al-Gebra network. He will be charged with carrying weapons of math instruction.
Do trig functions have inverses? • Only if we restrict the domains
Using inverses to find angles • Cos -1 (-0.5) • Sin x = 0.7 in 0 < x < 2∏
Practical application • Enter data on p. 49 into L1 and L2 on your calculator. • Calculate sinreg
homework • P. 53 #24, 27- 30, 31,32,35 • By Friday, p. 55 Quick Quiz 1-4. Must show work to get any credit.
Exit Slip • True or false: The period of y = sin(x/2) is ∏. Justify your answer.