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In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Given lm, find the measure of (award brainliest)

Situation: an archaelogist in turkey discovers a spear head that contains 54% of its original amount of c-14. n = noekt no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years find the age of the spear head to the nearest year