for the function f(x) = 2x^2 - 8x - 5

how do i find equation of tangent, and equation of normal line to the curve y = f(x) at (1, f(1)) ? and vertex?

as far as i know, for the normal line,

f(#), so it would be (1,f(#))

and - 1/f'(x) is normal line

but i don't know how to find "equation" of normal line, and equation of tangent. and vertex........?