Which of the following equations has a unique integer solution?

Correct answer marked below

A

y=3x

B

y=(\frac{x}{3})+4

y=\sqrt{2}x

Correct

D

y=\frac{1}{2}x

E

y=\frac{-1}{x}+2

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Official Explanation

Official

For Option A, B, D & E there can be multiple integer solutions depending upon the value of

x

. Hence they are out.…

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What this question tests

Your ability to evaluate and compose functions, including unusual defined operations.

Applying function operations in the wrong order or ignoring domain restrictions.

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