8
RCMultiple Choice

Performance Task: Modeling with Sinusoidal Functions — Cumulative exam

Question 8 • S1S-OC: Pre-Calculus A (E3700 - AG)

Which property of multiplication is shown below? If x = 3 + 4i and y = 5 + 6i, x × y = y × x.

Answer
A
commutative property
B
identity property
C
distributive property
D
associative property

Explanation

The equation shows that switching the order of the two factors does not change their product: x × y = y × x. This is the commutative property of multiplication. The identity property involves multiplying by 1, and the associative property changes grouping rather than order.

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