X -+ 0 3. Suppose lim f(x) =1 and limg(x) =-5. Name the rules for limits that are used to accomplish step. Then, find the limit. lim 2f(x) -g(x) lim(2f(x) -g(x)) of x = (f ( xx ) + 7 ) 3 lim ( f ( x ) + 7 ) 3 x -+0 lim (2f (x) -8(x)) ( lim ( f ( * ) + 7 ) ) 3 lim 2 f (x) - lim g(x) =X-20 X-0 lim f ( x ) + lim 7 3 2lim f(x) - limg(x) X-0 lim f(x) + lim 7)3 4. Because of their connection with secant lines, tangents, and instantaneous rates, limits of the form lim J (x +h) -f(x) h -+ 0 h occur frequently in calculus. Evaluate this limit for the given value of x and function f (x). f(x)=x, x=1