Let X be the set of real numbers. Show that the function f : X → X defined by f(x) = 2x - 3 is a. one-to-one function, and also b. onto function.

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Practice problem from my Discrete Mathematics course:

Let X be the set of real numbers. Show that the function f : XX
defined by f(x) = 2x - 3 is
a. one-to-one function, and also
b. onto function.
Transcribed Image Text:Let X be the set of real numbers. Show that the function f : XX defined by f(x) = 2x - 3 is a. one-to-one function, and also b. onto function.
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