Add text annotation with variables to matlab plot over multiple lines

I would like to annotate a plot with a textbox (with or without a visible box) with the following characteristics

• Use latex as interpreter
• Have variable inputs (i.e. taken from values within matlab environment)
• Allow for line breaks where I want them

I have managed to do parts of this, but not all at the same time.

What I have tried:

alpha = 2;
plot(1:10)
text(2,5,'$\alpha = $','Interpreter','latex')

allows me to add the \alpha to the point of interest but I cannot figure out how to also have the variable alpha value

figure
plot(1:10)
dim = [0.179 0.849 0.06 0.037];
str = strcat('\alpha = ',num2str(alpha));
annotation('textbox',dim,'String',str,'FitBoxToText','on','Interpreter','latex');

allows me to include the variable alpha value, but I don't have the latex formatting on \alpha (I presume because of the strcat).

I tried a few suggestions around char(10) and \n to get newlines, but unsuccessfully.

I would appreciate an example of how to annotate this plot (plot(1:10)) with the an annotation that has \alpha = ALPHA on one line and \beta = BETA on the next line where the values for ALPHA and BETA are defined in the code.

Apologies for the basic question, it has been asked many times but I was unable to find a simple example to demonstrate how this worked with all my requirements.