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Math 3 Trig Unit 6
Term | Definition |
---|---|
Midline | Halfway between maximum value and minimum value |
Phase Shift | Special Name for horizontal movement of sine and cosine graph |
Unit Circle | Radius is one unit, center at (0,0) |
terminal side | Ending side of angle in standard position |
initial side | Beginning side of angle in standard position |
radian | Angle Measure for Math and Science |
degree | Angle Measure for Everybody Else (used but not preferred by math and science) |
cosine ratio | adjacent side/hypotenuse |
sine ratio | opposite side/hypotenuse |
tangent ratio | opposite side/adjactent side "uses the legs of the triangle" |
angle of elevation | Angle formed by the horizontal side and then moving upward |
angle of depression | Angle formed by the vertical side and then moving downward |
Period | Distance it takes for one full cycle |
Sine Parent Function Equation | f(x) = sinx |
Cosine Parent Function Equation | f(x) = cosx |
Absolute Value | | | which always results in a positive answer |