Hello, Jaguis!

It's quite straight-forward . . . Exactlywhereis your difficulty?

The tangent to the curve at (1,0) is

and is the normal to the curve at (1,2)

Find the intersection of and .

The slope of the tangent to is: .

At (1,0), the slope is: .

The equation of the tangent is: . .[1]

The slope of the tangent to is: .

At (1,2), the slope is: .

Hence, the slope of the normal is: .

The equation of the normal is: . .[2]

Now find the intersection of [1] and [2] . . .