Example 1 Video Example-4 Use the guidelines to sketch the curve y A. The domain is (x1x-10) (*1** *1) B. The x- and y-intercepts are both 0. C. Since -x) - fx), the function is elec D. lim 112 Therefore, the line y lim *-1* 2x lim 4-1-1 2x F421 tim 2x 2 lim 7-11- lim (using interval notation). M Since the denominator is 0 when x 1, we compute the following limits. 2x The curve is symmetric about the y-axis. is a horizontal asymptote. MY NOTES ASK YOUR therefore, the ines x 1 and 4. 2x-2x E. (). Since F'(x) > 0 when x