For y=f(x)y=f(x)y=f(x), the derivative is written as [...]\text{[...]}[...].
The yyy-coordinate, f(a)f(a)f(a).
Substitute the point's coordinates into the equation.
The tangent to y=f(x)y=f(x)y=f(x) at x=ax=ax=a has equation y−f(a)=f′(a)(x−a)\boxed{y-f(a)=f'(a)(x-a)}y−f(a)=f′(a)(x−a).
For y=f(x)y=f(x)y=f(x), the derivative is written as dydx=f′(x)\boxed{\frac{dy}{dx}=f'(x)}dxdy=f′(x).
1.7.13 Tangents and normals Flashcards
Flashcards for OCR A Level Maths 1.7.13 Tangents and normals, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 24 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.