31 August, 11:56
If f (x) = 2x - 5, then f (4) is
31 August, 13:53
you must to replace x be 4.
like this f (4) = 2 (4) - 5
so 2*4 = 8
and then 8-5=3
so the final answer is f (4) = 3
that all. All the best. hihi
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