Question: Problem 2. [7 points] Consider the function f:QQ defined by f(x)=2x+5. (a) [3 points ] Is f an injection? (b) [3 points ] Is f

Problem 2. [7 points] Consider the function f:QQ defined by f(x)=2x+5.

Problem 2. [7 points] Consider the function f:QQ defined by f(x)=2x+5. (a) [3 points ] Is f an injection? (b) [3 points ] Is f a surjection? (c) [1 point ] Is f a bijection

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