Respuesta :

h(4) means you have to substitute in for h.  So the equation becomes H(4)=-2(4) + 4.  You don't technically have to have the H(4) part in there when you work the equation.  Use PEMDAS: 
-2(4)+4
-2 x 4 = -8
-8 + 4
=-4 
So, -4 is the answer. :)