1. L L LR R R On regressions, if values come out as the following….round! 1.5 E -12 =0 1.74999998 =1.75 Notes 5.6 Calculator and quadratics practice Chart to help identify boundaries for vertex and s/r/z

2. Labeling the Graph L R L R R L Zero Max (vertex) Min (vertex) L R L R R L Zero

3. Go to 2 nd trace to find A. Max or min (vertex) (round to 1000ths ) B.All S/R/Z (round to 10ths) C.Find f(– 12.5) D.Y-intercept xy -428 -327 -222 13 00 1-17 Note that 2 nd differences are the same’ thus this data is _______________________ What equation models this data? Quadratic

4. How to find an equation given points Stat edit (enter points in L 1 and L 2 ) Stat  Calc Quadratic regression Enter Transfer equation to y= Y= vars #5 (statistics) EQ Enter Find vertex or zero 2 nd trace (calc) Choose # Set lt and rt boundaries When it says guess hit Enter Find prediction 2 nd window (table set) Put # in table start table

5. Go to 2 nd trace to find: A. Max or min (vertex) : B.All zeros C.Find f(3.5) D.y-intercept

6. (, ) Word Problem Hint V (x, y) When?X How high? Max money? Y V ( time, height ) Max money

7. Quadratics and Systems of Equations Multiply the second equation by -2 (3,23)

8. Quadratics and Systems of Equations Substitute for y Pick a factoring method.

9. Practice/ Makerboards: odds do 1/3 and even 2/4 1.2. 3.4. Change #3 to match mine!