STUDY FOR TEST!!!!

Tonight's homework is just studying for the test. The template you used during class lists the four things you will need to be able to do for this test. If you are having trouble with any of those feel free to send a Remind! message, you could try doing some odd problems from the book and checking your answers in the back. Review the sequence of steps and the table for +/- cos, sin that I handed out yesterday if you're having trouble.

Topics covered on the TEST are as follows:

• Parent functions (sin, cos) and their shape
• amplitude (|a|) and how it affects graphing the parent function
• Vertical shift and how it affects graphing the parent function
• Determining Period (=2π/b) 
• For Determining equations: plug in period (into the equation above) and solve for b
• Phase shift and how it affects the parent graphs (shift the starting point (x=0) for any given function)
• Determining equations based on a graph (consider midline, amplitude, period, shape, and +/-)
• Don't worry we WILL NOT be using phase shift to determine equations only those 5!!
• Determining Equations based on written descriptions (amp of 4, shift up of 3....)
• Writing descriptions of a trig equations
• Don't forget to include the - (negative)
• a negative should be written like this "Reflected over the midline"

There is a key to last night's homework below:

5) y = -cos(2/3 x) + 2

6) y = 2sin(2/7 x) - 2