For $f(x) = y$, plot $f(x)$ if $y>a$ in one colour and in a different colour for $y\le a$
12884
How do you plot the same function with different options over different intervals?
28286
About finding the function such that $f(xy)=f(x)f(y)-f(x+y)+1$
16794
Plotting the components of a function that returns a list in different colors without redundant evaluations of the function
102457
for any $A\subseteq X$, $f(\overline{A})\subseteq\overline{f(A)}$ , if and only if $f: X \to Y$ is continuous.
105129
Plotting two recursive functions
131736
Proving a triangle with different edge colors exists in a graph.
74252
piecewise function
91686
Fading plots based on a function
52858
Find $f$ if $ f(x)+f\left(\frac{1}{1-x}\right)=x $
155048
Plot list over same x values?
117724
how to plot complicated function
91647
Plot with conditional colors based on values in R
82597
How to find $ f(x)$ if $f(1-f(x))=x$ for all $x$ $\in \mathbb{R}$
23294
Show that the function $f = \frac{xy}{x^2 + y^2}$ is continuous along every horizontal and every vertical line
58227
Plot x=3 in PGFPlots
116706
Proper way to Plot a single function in two different styles?
81720
$f(x) + f(x+f(y)) = y + f(f(x) + f(f(y)))$