Final Exam Flashcards
arithmetic sequence
a sequence in which the difference of consecutive terms is constant
asymptote
A line that a graph approaches more and more closely
Change of base formula
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circle
a round plane figure whos boundary consists of points equidistant from a fixed point
combined variation
describes a situation where a variable depends on two (or more) other variables, and varies directly with some of them and varies inversely with others
common difference
The constant difference between consecutive terms of an arithmetic sequence
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common ratio
The constant factor between consecutive terms of a geometric sequence
completing the square
a method used to solve a quadratic equation by changing the form of the equation so that the left side is a perfect square trinomial
complex conjugates
each of two complex numbers having their real parts identical and their imaginary parts of equal magnitude but opposite sign.
complex fraction
a fraction in which numerator, denominator, or both are themselves fractions
complex number
are the numbers that are expressed in the form of a+ib where, a,b are real numbers and ‘i’ is an imaginary number called “iota”
composition of functions
is applying one function to the results of another
compound inequality
an inequality that combines two simple inequalities.
conic section
a figure formed by the intersection of a plane and a right circular cone.
consistent
at least one set of values for the unknowns that satisfies each equation in the system—that is, when substituted into each of the equations, they make each equation hold true as an identity.
constant of variation
a direct variation is the constant (unchanged) ratio of two variable quantities.
continuous relation
A set of data is said to be continuous if the values belonging to the set can take on ANY value within a finite or infinite interval
correlation coefficient
a number between −1 and +1 calculated so as to represent the linear dependence of two variables or sets of data.
dependant
a system that has infinite numbers of solutions.
dimensions of matrix
the number of rows by the number of columns
direct variation
describes a simple relationship between two variables
discriminant
a parameter of an object or system calculated as an aid to its classification or solution
elipse
is a curve that is the locus of all points in the plane the sum of whose distances and from two fixed points and separated by a distance of is a given positive constant (
end behavior
looking at the two extremes of x. As x gets closer to infinity and as x gets closer to negative infinity
exponential equation
an equation involving exponential functions of a variable.
extraneous solution
a root of a transformed equation that is not a root of the original equation
extrema
he maximum or minimum value of a function.
factor theorem
a theorem linking factors and zeros of a polynomial
finite sequence
has a limited number of terms and infinite if it does not