Question

dada a função afim f(x)= -2x + 3 determine: a) f(1) b) f(0) c) f(1/3) d) f(-1/2)

Answer 1

$\boxed{f(x)=-2x+3}\\ \\ a) \ f(1)=-2.1+3=-2+3=1\\ \\ b) \ f(0)=-2.0+3=0+3=3\\ \\ c) \ f(\frac{1}{3})=-2.\frac{1}{3}+3=-\frac{2}{3}+3=\frac{7}{3}\\ \\ d) \ f(-\frac{1}{2})=-2.(-\frac{1}{2})+3=1+3=4$