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Across 4. The part of a function that dictates the exact correspondence between the elements of one set and the elements of another set. 7. The repeating interval of a periodic function; the period of a function is a real number. 8. A function that repeats itself in regular intervals; it follows this equation: f (x + c) = f (x), where c is a constant. 9. Given a point P(x, y) on the terminal side of an angle θ in standard position, distance d from the origin, blank = csc(θ) = 10. The circle whose center is at the origin and whose radius is one. 12. Given a point P(x, y) on the terminal side of an angle θ in standard position, distance d from the origin, Blank(θ) = sin(θ) = 15. Given a point P(x, y) on the terminal side of an angle θ in standard position, Blank(θ) = tan(θ) =

Down 1. The positive acute angle formed between the terminal side of an angle and the x-axis. 2. An operation that assigns a correspondence from elements of one set to elements of another set. 3. There are six trigonometric functions: Sine, cosine, tangent, cosecant, secant, and cotangent. 5. Cotangent Given a point P(x, y) on the terminal side of an angle θ in standard position, Blank(θ) = cot(θ) = 6. The set of all possible inputs of a function. 11. Given a point P(x, y) on the terminal side of an angle θ in standard position, distance d from the origin, ce(θ) = Blank(θ) = 13. The set of all possible outputs of a function. 14. Given a point P(x, y) on the terminal side of an angle θ in standard position, distance d from the origin, Blank(θ) = sec(θ) =