Equation of tangent at a point (y - y0 = f'(x0)(x - x0))
jee-mainjee-advanced
y - y0 = f'(x0)(x - x0)
What each symbol means
| Symbol | What it stands for |
|---|---|
| x_0 | Point of contact (x-coordinate) |
| y_0 | f(x_0) |
| f'(x_0) | Slope of tangent |
When to use this
f differentiable at x_0 with finite f'(x_0). If slope infinite, use x = x_0.