Question

Hi! Help me please :'( "f:{-2,-1,0,1,2} {-1,0,1,2,3,4,} f(x)=x la a 2a"

Answer 1

f(-2)= -2 la a 2 a=4 
f(-1)=-1 la a 2= -1
f(0)=o la a 2= 0
f(1)=1la 2=1
f(2)= 2 la a 2=4
imf: {-1,0,1,4}