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31 Cards in this Set
- Front
- Back
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absolute value
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a number's distance from zero on a number line; the absolute value of 2 is equal to the absolute value of -2.
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altitude(of a triangle)
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a segment drawn from a vertex of a triangle and perpendicular to the opposite side or to the lline containing the opposite side
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analytic geometry
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a branch of geometry in which points are represented with respect to a coordinate system and in which the approach to geometric problems is primarily algebraic
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angle bisector
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a ray in the interior of an anlge, whose endpoint is the vertex of that angle and divides the angle into two congruent angles.
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arc
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a continuous part of a circle between two points on the circle
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binomial
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a polynomial with two terms (e.g. 7a + 4b)
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central angle
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of a circle: an angle whose vertex is the center and whose sides are radii of the circle
of a regular polygon: an angle whose vertex is the center and whose sides intersect the regular polygon at adjacent vertices |
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circumscribed polygon
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a polygon that surrounds a circle with each of its sides tangent to the circle
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dependent events
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two events in which the outcome of one event affects the outcome of the other event
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direct proportion
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two quantities that always have a constant ratio. A direct variation is described by an equation of the form y=kx, where k is a constant not equal to zero.
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exponential function
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a function that can be described by an equation of the form y = a^x, where a>0 and a does not equal 1.
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inscribed angle
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an angle whose vertex is a point on the circle and whose sides are chords of the circle
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inscribed polygon
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a polygon surrounded by a circle where each of the polygon's vertices is a point on the circle
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interquartile range
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the difference between the first and third quartile
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inverse proportion
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two quantities that are inversely related; an inverse variation is described be an equation of the form xy = k or y = k/x where k is a constant not equal to zero
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irrational number
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a number that cannot be written as a ratio of two integers; it is a non-repeating, non-terminating decimal
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line of best fit
(aka regression line) |
a line drawn on a scatter plot to best estimate the relationship between two variables
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median(of a triangle)
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a line segment that connects a vetex of a triangle to the midpoint of the side opposite that vertex
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midpoint
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the point on a line segment that is halfway between the endpoints of the segment
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monomial
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a number, variable, or the product of a number and one or more variables; e.g. 7ab
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odds
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the ratio of the number of ways an event can occur(successes) to the number of ways the event cannot occur(failures)
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outlier
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a value that is much greater or much less than the rest of the data; it is an element of a set of data that is 1.5 interquartile ranges greater than the upper quartile or less than the lower quartile
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polynomial
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an algebraic expression that contains one or more monomials
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quadratic function
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equations which are expressed in the form y = ax^2 + bx + c, where a is not equal to zero
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rational number
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a number that can be expressed as a ratio of two integers; a rational number can be expressed in the form a/b where a and b are integers and b is not equal to zero
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real number
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the combined set of rational and irrational numbers
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secant(of a circle)
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a line that intersects a circle in exactly two points
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semicircle
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an arc of a circle whose endpoints are the endpoints of a diameter
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slope
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the ratio of the change in the vertical distance to the change in the horizontal distance of two opints on a line; slope measures the steepness of a line from left to right
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tangent(of a circle)
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a line that touches a circle in exactly one point
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trinomial
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a polynomial with three terms, e.g. 7a + 5b + 8c or 7x^2 + 5x - 12
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