The value of the given expression; f(x) = 4 - 2x, for f(3r -1) as required in the task content is; f(3r-1) = 6 - 6r.
What is the value of the expression according to the given value?
Since it follows from the task content that the given function is defined by the expression;
f(x) = 4 - 2x.
To evaluate the function f(x) = 4 - 2x, for f(3r -1); we must substitute 3r -1 for x in the equation as follows;
f(3r -1) = 4 - 2(3r-1)
f(3r-1) = 6 - 6r.
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