Expression 2: "V" left parenthesis, "t" , right parenthesis equals negative 3 pi "t" squared plus 3 pi "t" Has graph. To audio trace, press ALT+T.Vt=−3πt2+3πt
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Expression 3: "A" left parenthesis, "t" , right parenthesis equals negative 6 pi "t" plus 3 pi Has graph. To audio trace, press ALT+T.At=−6πt+3π