Please help find the foci and asymptotes of hyperbola ((x-1)^2/25)-((y+1)^2/16)=1

Find the foci and asymptotes of the hyperbola ((x-1)^2/25)-((y+1)^2/16)=1
Please help out a bit,thank you

foci
(1+sqrt41 , -1) , (1-sqrt41, -1)
asymptotes
y+1 = +/- (4/5)(x-1)

Here a^2 = 25 and b^2 = 16
So 16 = 25((e^2 -1) or e^2 = 41/25 means e = (sqrt41)/5 So (sqrt41,0) and (-sqrt41, 0) are the foci and directrices are x = + or - 25/sqrt41