The tangent to the curve y = e2x at the point (0, 1) meets x-axis at:
Given the equation of the curve is
y = e2x
Differentiating on both sides with respect to x, we get
Applying the exponential rule of differentiation, we get
As it is given the curve has tangent at (0,1), so the curve passes through the point (0,1), so above equation at (0,1), becomes
So, the slope of the tangent to the curve at point (0,1) is 2
Hence the equation of the tangent is given by
y-1=2(x-0)
⇒ y-1=2x
⇒ y=2x+1
It is given that the tangent to the curve y=e2x at the point (0,1) meet x-axis i.e., y=0
So the equation on tangent becomes,
⇒ y=2x+1
⇒ 0=2x+1
⇒ 2x=-1
Hence the required point is
Therefore the tangent to the curve y = e2x at the point (0, 1) meets x-axis at
So the correct option is option B.