[tex]\mathsf{Given : f(x) = -3x + 2}\\\\\mathsf{\implies f(\frac{5}{3}) = -3(\frac{5}{3}) + 2}\\\\\mathsf{\implies f(\frac{5}{3}) = -5 + 2}\\\\\mathsf{\implies f(\frac{5}{3}) = -3}[/tex]