Answer:
Yes, this is a function.
No, this is not a linear function.
Step-by-step explanation:
A function is a process or a relation that associates each element x of a set X, the domain of the function, to a single element y of another set Y
Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable.
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