February 12

section covered in text
1.4  Parametric Curves

objective
to be able to plot parametric curves, to note the direction, and to be able to eliminate the parameter in order to find a Cartesian equation for the curve when possible

key ideas and/or vocabulary
parameter, parametric curves, initial and terminal points, direction

solved problems - using key ideas
Example 2 in text: well known basic parameter equation
Example 5.  using STYLE in calculator to see that the graph of the parametric equation is actually being overdrawn
#4.  using the graphing calculator to graph the parametric equation and eliminating the parameter to obtain Cartesian equation
#17.  as in #4 but special note as to direction
#18.  understanding the equations without graphing
#23.  application - using parametric equations to study movement of projectile
#19,20. surprising equations whose graphs are triangles
 
 

group work
Name that Parametrization
Solutions to Name that Parametrization

announcements
Homework.  #2,10,12,22,26,32
 
 
 
 
 
 
 
 
 
 
QUESTION OF THE DAY
At what point on the parametric equations x = 8t - 4t3, y = - 4t2 + 3t4 is a sharp corner encountered?
  SOLUTION
 

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SOLUTION.  
 
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