1. Equations & Inequalities

Complex Numbers

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Multiple Choice

Identify the real and imaginary parts of each complex number. $-4-9i$

$a = -9, b = -4$

$a = -4, b = -9$

$a = 4, b = 9$

$a = -4, b = 9$

Verified step by step guidance

Understand that a complex number is generally expressed in the form $ a + bi $, where $ a $ is the real part and $ b $ is the imaginary part.

Given the complex number $ -4 - 9i $, identify the real part $ a $ and the imaginary part $ b $.

The real part $ a $ is the coefficient of the real number, which is $ -4 $ in this case.

The imaginary part $ b $ is the coefficient of $ i $, which is $ -9 $ in this case.

Therefore, for the complex number $ -4 - 9i $, the real part is $ a = -4 $ and the imaginary part is $ b = -9 $.

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Identify the real and imaginary parts of each complex number. −4−9i-4-9i−4−9i