Question

dada a funcao f(x)=(1-5x) determine f(-1); f(1/5) e f(-1/5

Answer 1

f(x) = (1 - 5x)

f( - 1) = ( 1 -5.(-1)) = 1 + 5 = 6

f( 1/5) = ( 1 - 1/5) = 1-1/5 = 5-1/ 5 = 4 / 5

f( -1 / 5 ) = ( 1 - ( -1 / 5 ) = 1 + 1 / 5 = 5 / 5 = 1