A curve has equation y $=$ f$($x$).($a$)$ Write an expression for the slope of the secant line through the points P$(3,$ f$(3))$ and Q$($x$,$ f$($x$)).$ f$($x$)$ x f$(3)3$ x $3$ f$($x$)$ f$(3)$ f$($x$)$ f$(3)$ x $3$ f$(3)3$ f$($x$)$ x $($b$)$ Write an expression for the slope of the tangent line at P$.$ lim x$->0$ f$($x$)$ f$(3)$ x $3$ lim x$->3$ f$($x$)$ f$(3)$ x $3$ lim x$->3$ x $3$ f$($x$)$ f$(3)$ lim x$->0$ f$($x$)$ x f$(3)3$A curve has equation y $=$ f$($x$).($a$)$ Write an expression for the slope of the secant line through the points P$(3,$ f$(3))$ and Q$($x$,$ f$($x$)).$ f$($x$)$ x f$(3)3$ x $3$ f$($x$)$ f$(3)$ f$($x$)$ f$(3)$ x $3$ f$(3)3$ f$($x$)$ x $($b$)$ Write an expression for the slope of the tangent line at P$.$ lim x$->0$ f$($x$)$ f$(3)$ x $3$ lim x$->3$ f$($x$)$ f$(3)$ x $3$ lim x$->3$ x $3$ f$($x$)$ f$(3)$ lim x$->0$ f$($x$)$ x f$(3)3$