how to make graph for this function

f:y=Ix−4I+Ix2−5x+6I−Ix+4I+4.

Answer 1

[Setsuna Yuuki.]

You can use fplot()

for example:

syms x;
y = @(x) abs(x-4)+abs(x^2-5*x+6)-abs(x+4)+4;
fplot(y,'LineWidth',3);
xlim([-6 12])

more info: https://es.mathworks.com/help/matlab/ref/fplot.html

[Eva]

Thank you very much but it says this: "Warning: Function behaves unexpectedly on array inputs. To improve performance, properly vectorize your function to return an output with the same size and shape as the input

arguments.

> In matlab.graphics.function.FunctionLine>getFunction

In matlab.graphics.function/FunctionLine/updateFunction

In matlab.graphics.function.FunctionLine.set.Function_I

In matlab.graphics.internal.figfile.FigFile/read (line 31)

In matlab.graphics.internal.figfile.FigFile

In loadFigure (line 31)

In openfig>localOpenFigure (line 75)

In openfig (line 40)

In open (line 132)

In uiopen (line 159)" How to fix it, please?

I need to make graph+asymptotes

[Setsuna Yuuki.]

Another way:

x = linspace(-6,12,2000);
y = abs(x-4)+abs(x.^2-5*x+6)-abs(x+4)+4;
plot(x,y,'LineWidth',2)