Is this right? which of the following is the best linear approximation for f(x) = tan(x) near x = 3pi/4? i used the linearization equation y=f(a)+f'(a)(x-a) y=f(3pi/4)+f'(3pi/4)(x-3pi/4) y=tan(3pi/4)+sec^2(3pi/4)(x-3pi/4) y= -1+2(x-3pi/4) y= -1+2x-3pi/2 2y=4x-3pi-2 is this correct?

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.