1. The coordinate system shown below is called the complex plane. In the complex plane, the point (a, b) corresponds to the complex number a + bi.

Match each complex number with its corresponding point.
(i) 3
(ii) 3i
(iii) 4 + 2i
(iv) 2 ˆ’ 2i
(v) ˆ’3 + 3i
(vi) ˆ’1 ˆ’ 4i
2. Describe the error.
ˆš ˆ’6 ˆš ˆ’6 = ˆš(ˆ’6) (ˆ’6) = ˆš36 = 6 X

Imaginary axis A B Real axis