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3.1.6 Algebra and functions (A-level only)

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Question 8
57%
a.

Sketch the graph of y=∣x∣+8y = |x| + 8y=∣x∣+8

[1]
b.

Explain why ∣x∣+8≥∣x+8∣|x| + 8 \geq |x+8|∣x∣+8≥∣x+8∣ for all real values of xxx.

[2]

3.1.6 Algebra and functions (A-level only) Questions

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