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Function Machines

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Question 18

Here is a number machine.

Input → ×2\times 2×2 → -7 → Output

a.

What is the output when the input is 10?

[1]
b.

What is the input when the output is 15?

[1]
c.

Show that there is a value of the input for which the input and the output have the same value.

[2]

Function Machines Questions

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