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a list of numbers in which the difference between each number is the same
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the sum of the first n terms of an arithmetic sequence
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| the nth term of an arithmetic sequence |
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| the nth partial sum in an arithmetic series |
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Arithmetic Sequence Formula
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| Partial Sum of Arithmetic Series Formula |
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the square root a negative number; e.g. i = sqrt(-1)
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| a number in the form 0 + bi where b is a non-zero, real number |
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| a number in the form a + bi where a and b are real numbers |
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| For a + bi, it is a – bi. |
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| Standard Form of a Quadratic Equation |
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f(x) = ax2 + bx + c where a is not = 0
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| a point where a function attains a maximum or minimum; the vertex on a parabola |
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| a line that passes through the vertex and splits the parabola into two symmetric parts; x = h for f(x) = a(x - h)2 + k |
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| (-b/(2a), f(-b/(2a)) for f(x) = ax2 + bx + c |
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| Vertex Form of a Quadratic Function |
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| Intercept Form of a Quadratic Function |
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factored form; f(x) = a (x – p)(x – q) where p and q are x-intercepts
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where a graph crosses the x-axis; written in the form (x, 0)
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| the x values where f(x) = 0; also called the roots or solutions |
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x = -b/(2a) for f(x) = ax2 + bx + c
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