Trying to work this one and want to ensure I am working this right

Show that the horizontal asymptotes of f(I ) = V2516 + 7 413 +7 are y = 1.25 and y = -1.25 by evaluating the limits to positive and negative infinity. (Hints: Use x 3 and the technique on page 3 of Activity 8. Be sure to use r 7 = (x-3| to get the correct sign for the limit to negative infinity.) Multiey by * ' 1 x 1= 10 23 : 4 = - 1.25 725 x6+7