1. The domain of f = f(z) is the set of image elements.

(a) True   ; (b) False   .

2. If z = x + iy, then the function f(z) = y is real valued.

(a) True   ; (b) False   .

3. Geometrically, the mapping f(z) = - z is a reflection in the x-axis.

(a) True   ; (b) False  .

4. Geometrically, the mapping f(z) = 2z is an enlargement about the origin.

(a) True   ; (b) False   .

Notes