Which composition of similarity transformations maps triangle lmn to triangle l’m’n?

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

What is the absolute value of the complex number -4-sqrt2i