I have this part of code (see below) - and I cannot understand, why the first line in the graph is not red and why the second line is dashed... See attachement... (Mathematica 10.3.0.0, Windows 10 - 64 bit)

Thank you for help!

In[22]:= f2
ff2

Out[22]= (x/(k4 + x))^k5

Out[23]= k5 (x/(k4 + x))^(-1 + k5) (-(x/(k4 + x)^2) + 1/(k4 + x))

In[24]:= Plot[{f2, ff2} /. {k4 -> 1, k5 -> 1}, {x, 0, 5}, 
 AxesOrigin -> {0, 0}, GridLines -> Automatic, 
 PlotRange -> {Automatic, Full}, 
 PlotStyle -> {Directive[Red, Dashed], Directive[Blue, Thin]}]