Question

Draw the graph of the function f(x) = 2 * ⌈x⌉ for the domain -2 < x < 1 .

Answer 1

when 0<x<1 → ⌈x⌉=1 →f(x)=2
when x=0 → ⌈x⌉=0 →f(x)=0
when -1 <x<0 → ⌈x⌉=0 →f(x)=0
when x= -1 → ⌈x⌉= -1 →f(x)= -2
when -2<x<-1 → ⌈x⌉= -1 →f(x)= -2