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Math
Formulae and information for math
| Question | Answer |
|---|---|
| Trigonometry functions mnemonic | Sohcahtoa |
| Sine function | Opposite over hypotenuse |
| Cosine function | Adjacent over hypotenuse |
| Tangent function | Opposite over adjacent |
| Perfect right triangle with one side a multiple of 3 | 3, 4, 5 |
| Perfect right triangle with hypotenuse a multiple of 13 | 5, 12, 13 |
| Perfect right triangle with one side a multiple of 15 | 8, 15, 17 |
| The slopes of parallel lines are? | Equal |
| If M is the slope of a line, what is the slope of the perpendicular intersecting line? | - 1/M |
| The standard equation for a circle is? | (x-h)^2 + (y-k)^2 = R^2 |
| The standard equation for a parabola is? | y= ax^2 +bx +c |
| The vertex equation for a parabola is? | y = a(x-h)^2 + k |
| Quadratic Formula? | x=(-b±√(b^2-4ac))/2a |
| Parabola axis of symmetry? | x = -b/2a |
| If two lines intersect, how many points do they have in common? | One |
| If two lines are parallel, how many points do they have in common? | Zero |
| If two lines are equivalent, how many points do they have in common? | Infinite |
| If y < mx + B, y will lie where? | Below the line. |
| If y > mx + b, y will lie where? | Above the line. |
| If y = mx +b, y will lie where? | On the line. |
| In f (g(x)), first solve for g(x), then? | Take the result and solve for f(x) |
| In word problems involving linear equations, M often corresponds to what? | The rate of change. |
| In word problems involving linear equations, b often corresponds to what? | The starting value, |
Created by:
dennispeskin
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