Forty terms, survey-kit plain.
| function | a rule pairing each input with exactly one output |
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| domain | the set of allowed inputs |
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| range | the set of possible outputs |
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| parabola | the curve a quadratic draws |
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| vertex | the turning point of a parabola |
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| discriminant | b2 − 4ac, the root counter |
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| complex number | a number with a real part and an imaginary part |
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| imaginary unit | i, whose square is negative one |
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| conjugate | the same two terms with the middle sign flipped |
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| radical | the root sign and its contents |
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| rational exponent | a fraction exponent naming a root and a power |
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| logarithm | the exponent that answers a growth question |
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| exponential | growth or decay by repeated multiplication |
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| asymptote | a line a curve approaches forever |
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| inverse | the function that undoes another |
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| composition | one function fed into another |
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| matrix | a rectangular grid of numbers |
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| determinant | the single number a square matrix reduces to |
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| sequence | an ordered list of numbers |
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| series | a sequence being added up |
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| arithmetic sequence | a sequence with a constant difference |
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| geometric sequence | a sequence with a constant ratio |
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| conic | a curve cut from a cone |
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| ellipse | the stretched circle of the conic family |
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