For the function f(x) = |2x-7| - 3 find f(2)
2 answers:
Evaluate abs(2 x - 7) - 3 where x = 2:abs(2 x - 7) - 3 = abs(2 2 - 7) - 3 2×2 = 4:abs(4 - 7) - 3 4 - 7 = -3:abs(-3) - 3 Since -3<=0, then abs(-3) = 3:3 - 3 3 - 3 = 0:Answer: 0
F(x)=[2x-7] -3 f(2)=[2(2)-7]-3 f(2)=[4-7]-3 f(2)=[-3]-3 f(2)= 3 -3 Remember absolute value is the distance from zero. No number will ever have a negative absolute value! :) f(2)= 0
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