Unit 7 Vocab
Define exponential equation.
An equation in which the independent variable is an exponent.
Logarithms of base 10.
Define regression function.
A function generated by an algorithm to find a line or curve that fits a set of data.
Define the central angle of a circle.
An angle with a vertex at the center of a circle and sides that are radii.
Define trigonometric function.
A function that relates the measure of one nonright angle of a right triangle to the ratios of the lengths of any two sides of the triangle.
Define compound interest?
Interest calculated on the principal and on the accumulated interest from previous periods.
Fine Logarithmic Equation.
An equation that contains one or more logarithms.
What is the coefficient of Determination?
An indicator of how well a function fits a set of data.
Define coterminal angles.
Angles in standard position that have the same terminal side.
Define circular function.
A function that describes a point on a circle as the function of an angle defined in radians.
Define e?
An irrational number that approximately equals 2.7182818….
Define Natural Logarithm.
The inverse of the natural base exponential function, most often abbreviated as ln x.
Define Geometric Sequence.
A pattern of numbers that begins with a nonzero term and each term after is found by multiplying the previous term by a nonzero constant r.
Define the initial side of an angle.
The part of an angle that is fixed on the x-axis.
Define midline and the amplitude?
midline: The line about which the graph of a function oscillates.
amplitude: For functions of the form y=asinbθ or y=acosbθ , the amplitude is ∣a∣.
Define the difference between a infinite and finite sequence.
A infinite sequence is a sequence that continues without end.
A finite sequence is a sequence that contains a limited number of terms.
Define Natural base Exponential function.
The inverse of the natural base exponential function, most often abbreviated as y=e^x
Define rational expression.
A ratio of two polynomial expressions.
What is standard position of an angle?
An angle positioned so that the vertex is at the origin and the initial side is on the positive x-axi.
Define sinusoidal function.
A function that can be produced by translating, reflecting, or dilating the sine function.
Define Sigma notation
A notation that uses the Greek uppercase letter S to indicate that a sum should be found.
Define Logarithmic function.
A function of the form f(x)=logbx, where b >0 and b does not equal 1.
Define complex fraction.
A rational expression with a numerator and/or denominator that is also a rational expression.
Define Radian.
A unit of angular measurement equal to 180π or about 57.296°.
Define reciprocal Trigonometric functions.
Trigonometric functions that are reciprocals of each other.