Question

3. Find the equation of the tangent to the curve x + 2y = 8, which .
refer to attachment​

Answer 1

Answer:

y=mx+

m

a

is a tangent for all values of m where a=2.

For m=1,y=x+2, so the equation of the tangent perpendicular to the given tangent is y=−x−2.

The required point is the point of intersection to there tangents i.e., (−2,0).

Alternately perpendicular tangents to a parabola intersect on the directrix, x+2=0.