Function Machines

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Question 5
Medium

Here is a number machine.

Input → ×4\times 4×4 → -15 → Output

a.

What is the output when the input is 6?

[1]
b.

What is the input when the output is 13?

[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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