+X +Y +X +Y +X +Y slope of tangent = dy/dx

y a x y a x y a x

x N+1 = x b x 1 = x a x i = x a + (i-1)  x X y

5 3 4 Y X u x 1

opposite side a adjacent side b hypotenuse c     1 1   2 1

+X +Y a (0, 0) (x C, y C ) a a a 1 rad a a  s

1 st quadrant 2 nd quadrant 3 rd quadrant 4 th quadrant 30 o 150 o -210 o -330 o -150 o -30 o 210 o 330 o 60 o 120 o -240 o -300 o 300 o 240 o -60 o -120 o 45 o -45 o -135 o 135 o -225 o 225 o 315 o -315 o ODD FUNCTION -2  -- 22   /2 -  /2 angle  [degrees / radians] -3  /2 3  /2

angle  [degrees / radians] -2  -- 22   /2 -  /2 -3  /2 3  /2

angle  [degrees / radians] -2  -- 22   /2 -  /2 -3  /2 3  /2

A c b a C B base b height h

angle  [degrees / radians] -2  -- 22 /2 -  /2 -3  /2 3  /2

O(0, 0) +Y +X O(0, 0) +Y +X

O(0, 0) +Y +X

O(0, 0) +Y +X x and y are directly proportional to each other (doubling the value of x doubles the value of y) x and y are not directly proportional to each other (doubling the value of x does not double the value of y) +Y O(0, 0) +X x and y are inversely proportional to each other only if doubling the value of x then the value of y is halved

+X +Y b a +X +Y b a +X +Y a +X +Y b a ( x 1, y 1 ) a > b a = ba < b +X +Y b a a > b 

y =