you have 20 minutes… pick up everything you need off the back desk to finish the practice test...
TRANSCRIPT
YOU HAVE 20 MINUTES…
Pick up everything you need off the back desk to finish the practice test from yesterday.
Make sure your scan tron has your name on it.
Check your Unit 5 homework also!
PERIODIC FUNCTIONS
Periodic Function- repeats a pattern of y-values at regular intervals
Period- horizontal length of one cycle
Cycle-one complete pattern
Amplitude- height; measures variations in the function values
½(Maximum-Minimum)
Amplitude deals with the ___ value.
Period deals with the ___ value.
1). Highlight one cycle2). Period?3). Amplitude?4). Graph the midline
HOW TO GRAPH TRIGONOMETRIC FUNCTIONSy= asin b(x-c)+d
y= acos b(x-c)+d
• a= amplitude• If negative- flip
• b= period
• c= horizontal shift
• d= vertical shift
TRIGONOMETRIC EQUATIONS
• a impacts the amplitude of the graph
• b alters the period
• A change in c causes a horizontal shift• When c is positve(x-c), the graph shifts right• When c is negative(x+c), the graph shifts left
• A change in d causes a vertical shift• When d is positive, the graph shifts up• When d is negative, the graph shifts down
TRIG IDENTITIES- RECIPROCAL IDENTITIES
Tangent Sin/Cos or Y/X
Cosecant 1/Sin or 1/Y
Secant 1/Cos or 1/X
Cotangent Cos/Sin or X/Y