C TO STATEFLOW HELP

function [f, a] = fcn(y) %#codegen

if y<1e-4

    y=1e-4;
end

if y<1.5

    f=500*(1.5-y)
    a=sqrt(1.5^3/y);
else
    f=0;
    a=1.5;
end

HOW DO I MODEL THIS IN STATEFLOW ? I AM NOT GETTING THE SAME GRAPH HELP HELP PLEASE !!!!!!