\begin{aligned} &4\\ &\text { Consider the equation } \sqrt{-x} \quad 1=x+3 . \end{aligned} a. Solve the equation algebraically. b. Explain how the equation can be solved graphically. c. Solve the

equation graphically. d. For which solution method is it most important to be aware of the potential for extraneous solutions? How can an extraneous solution be identified?