Mathematics · JEE | COMPLEX NUMBERS AND QUADRATIC EQUATIONS

Based on the reflection property in the Argand plane (Fig. 4.3), if the point \( P(x, y) \) represents the complex number \( z = x + iy \), then its mirror image across the real axis, point \( Q(x, -y) \), represents which of the following?

1. A
   The additive inverse of \( z \)
2. B
   The conjugate of \( z \)
3. C
   The multiplicative inverse of \( z \)
4. D
   The modulus of \( z \)