509112
Description
Flashcards by Tech Wilkinson, updated more than 1 year ago
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Created by Tech Wilkinson
almost 11 years ago
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| Question | Answer |
| discriminant | \(b^2-4ac\) |
| equation of straight line through \((x_1,y_1)\) with gradient \(m\) | \(y-y_1 = m(x-x_1)\) |
| perpendicular straight lines with gradients \(m_1\) and \(m_2\) | \(m_1 m_2 = -1\) |
| equation of circle with centre \((a,b)\) and radius \(r\) | \((x-a)^2+(y-b)^2=r^2\) |
| differentiation of \(y=x^n\) | \(\frac{dy}{dx}=nx^{n-1}\) |
| differentiation of \(y=f(x)+g(x)\) | \(\frac{dy}{dx}=f'(x)+g'(x)\) |
| Min / Max / Point of inflection (2nd derivative) | \(\frac{d^2y}{dx^2} = 0\) |
| Minimum point (2nd derivative) | \(\frac{d^2y}{dx^2} > 0\) |
| Maximum point (2nd derivative) | \(\frac{d^2y}{dx^2} < 0\) |
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