Question

determine o valor de y na função F (x)= 3x-9 Para x -1 0 3

Answer 1

F (x)= 3x-9      para x= -1 , 0 ,3
f(-1)=3*(-1)-9 -> f(-1)=-3-9 -> f(-1)=-12
f(0)=3*0-9 -> f(0)=0-9 -> f(0)=-9
f(3)=3*3-9 -> f(3)=9-9 -> f(3)=0