On an Argand diagram, the y-axis corresponds to which axis?

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Prepare for the A Level Further Mathematics Core Pure Test with detailed explanations and challenging questions. Boost your understanding and confidence to excel in your exam!

Multiple Choice

On an Argand diagram, the y-axis corresponds to which axis?

Explanation:
On the Argand diagram, a complex number z = x + i y is represented by the point (x, y). The horizontal axis shows the real part x, while the vertical axis shows the imaginary part y. Since the vertical coordinate encodes the imaginary part, the y-axis is the imaginary axis. The real axis is the horizontal axis, and there isn’t a standard diagonal or primary axis in this context.

On the Argand diagram, a complex number z = x + i y is represented by the point (x, y). The horizontal axis shows the real part x, while the vertical axis shows the imaginary part y. Since the vertical coordinate encodes the imaginary part, the y-axis is the imaginary axis. The real axis is the horizontal axis, and there isn’t a standard diagonal or primary axis in this context.

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