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1.2.12 The modulus function (A-level only)

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Question 29

A technician monitors the voltage VVV (in volts) in a circuit over time ttt (in seconds) for t≥0t \ge 0t≥0. The graph of the function V=g(t)V = g(t)V=g(t) is V-shaped, with the vertex located in the fourth quadrant at the point (5,−4)(5, -4)(5,−4) and the VVV-axis intercept at (0,6)(0, 6)(0,6).

One of the four equations listed below is the equation of the graph V=g(t)V = g(t)V=g(t). Identify which one is the correct equation.

□V=∣t−5∣−4\square \quad V = |t - 5| - 4□V=∣t−5∣−4

□V=∣2t−10∣−4\square \quad V = |2t - 10| - 4□V=∣2t−10∣−4

□V=∣2t+10∣−4\square \quad V = |2t + 10| - 4□V=∣2t+10∣−4

□V=∣t+5∣−4\square \quad V = |t + 5| - 4□V=∣t+5∣−4

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1.2.12 The modulus function (A-level only) Questions

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