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urp:algebra
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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urp:algebra [2021-11-08] nerf_herder [Functions] |
urp:algebra [2021-11-08] nerf_herder [Functions] |
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| **quadratic formula**: x = (-b ±√(b²-4ac)) / 2a | **quadratic formula**: x = (-b ±√(b²-4ac)) / 2a | ||
| + | |||
| + | **PEMBAS/BODMAS ** - order of operations: Parentheses (brackets), exponents (order), multiply/divide, add/subtract | ||
| ==== System of equations==== | ==== System of equations==== | ||
| Line 87: | Line 89: | ||
| composition of functions: (f’g)(x) = f(g(x)), order of evaluation is important | composition of functions: (f’g)(x) = f(g(x)), order of evaluation is important | ||
| - | inverse of function - only possible if no two values of x produce the same result | + | **Inverse** of a function - only possible if no two values of x produce the same result |
| Example: To find f⁻¹(x) for f(x) = 5x + 3 | Example: To find f⁻¹(x) for f(x) = 5x + 3 | ||
| y = 5x + 3 | y = 5x + 3 | ||
urp/algebra.txt · Last modified: 2022-02-01 by nerf_herder
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