tolong bantuannya nomor 2

y = x^2-2x+4
y' = 2x-2

m = y'
    = 2x-2  ---------> melalui titik (3,7)
    = 2(2) - 2
    = 2

(y-y1) = m (x-x1)
y - 7 = 2 (x - 3)
y - 7 = 2x - 6
y = 2x + 1