Question

What is the formula for the intercept of tangent line on x-axis?

(a) \(x-\frac{y}{y’}\)

(b) \(y-\frac{x}{y’}\)

(c) y – xy’

(d) y – x’y

I have been asked this question by my college director while I was bunking the class.

This question is from Geometrical Applications topic in chapter Ordinary Differential Equations – First Order & First Degree of Engineering Mathematics

Answer 1

Right choice is (a) \(x-\frac{y}{y’}\)

The best explanation: Intercept of a tangent line on the:

x-axis: \(x-\frac{y}{y’}\)

y-axis: y – xy’