Please answer questions 1, 2, 6, 18, and 19. (Please show easy to follow work :) Thank You!)

Calculus 1 Worksheet #14 Derivative Review For #1 and 2, use the definition f (a) = lim- f(ath) - f(a) to find derivative of the given function at the 490 h indicated point. -9 9 11 121 9 f( x)=- ,a =-11 A) - B) X 9 D) 11 121 f(x)=x- +6, a=2 A) -12 B) 13 C) 18 D) 12:5 Find the equation [:1me manual line to the curve 0f FEE5X1 at the p01t3,54]_ A} xEr' =0 Bjx+333r+l 735= C}x2?y+1?35 = D)x+331.r+9?5= \f19 Find the fourth derivative of the function. y= 6x3-5x--6x+1 A) 720 B) 480x-+10 C) 480x+10 D) 360x