Question

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

Answer 1

f(x) = -2x + 3

Logo,

a) f(1/3) = -2.(1/3) + 3
    f(1/3) = -2/3 + 3
    
    f(1/3) = - 2 + 9
                ------------
                      3

    f(1/3) = 7/3

b) f(-1/2) = -2.(-1/2) + 3
    f(-1/2) = 2/2 + 3
    f(-1/2) = 1 + 3
    f(-1/2) = 4