Y=x moves up 1 unit (moves left 1 unit), y=x+ 1.

Y=x y = (x- 1) = x- 1 shift 1 unit, (that is, x=y+ 1).

Y=2x y = 2x+ 1 unit or more.

Y=2x y = 2 (x+ 1) = 2x+2 move left 1 unit.

figurative

The key is to change it to Y = KX+B, Y = AX 2+BX+C (the same as junior high school).

For example, y = ax 2+bx+c is moved up by 5 units, and then moved to the right by 3 units to get y = a (x-3) 2+b (x-3)+c+5.