let m and b be real numbers and let the function f be defined by
If f is both continuous and differentiable at x=1, then
m=?
b=?
my steps
-substitute for x=1
-combine like terms
-rearrange for m
-substitute back in
3+3b=(3+2b)+b
3+3b=3+3b
-this is where i am lost i dont even have a variable when I solve...
what did I do wrong?
All help is appreciated.