#### Answer

For the complex number 3+4i, the real part is 3, and the imaginary part is 4i.

#### Work Step by Step

3 + 4i is a complex number, composed of a real number and an imaginary number. Since 4 is multiplied by i (an imaginary number) it is is the imaginary part of the complex number and 3, a real constant, is the real part of the complex number.