Here's the question you clicked on:
Spitfire77
F(x)= (2x+1) when x greater than or equal to 3 = (x^(2) - A) x < 3 Find all values of the number A such that f(x) is continuous at x=3
Set the left limit equal to the right limit like so: \[\lim_{x \rightarrow 3^-}F(x)=\lim_{x \rightarrow 3^+}F(x)\] then solve