Let A(x) be the area of the region bounded by the t-axis and the graph y = f(t) from t=0 to t=x. Complete parts a through c using the graph of f(t) to the right. f(t) = -2t+8 ifts 3 if t>3 b. Find A(4). A(4)= units² c. Find a formula for A(x). Choose the correct answer below. OA. A(x)=. 8x-x² if 0≤x≤3 2x+9 ifx>3 OB. A(x)=2x+9 - {₂ OD. A(x)=8x-x² OC. A(x) = CETTE -2x+8 if 0≤x≤3 if x>3 4- Q Q G

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