Functions
These functions are written f(x)=ax2+bx+c with a not equal to 0.
What are quadratic functions ?
This circular chart shows categories as proportional slices.
What is a pie chart ?
In an arithmetic sequence, this constant equals aₙ₊₁ – aₙ.
What is the common difference ?
The set W= {0,1, 2, 3, …} is known by this name.
What is the set of whole numbers ?
This is the set that contains all possible outcomes of a random experiment, usually written Ω.
What is the sample space ?
The complete set of all possible inputs of a function has this name.
What is the domain ?
The middle value in an ordered data set—or the mean of the two middle values when the set size is even.
What is the median ?
This is the explicit formula for the n‑th term of an arithmetic sequence.
What is the formule an=a0+n*d ?
Numbers expressible as a fraction of two integers belong to this set, denoted ℚ.
What is the set of rational numbers ?
This is a conditional probability.
What is the probability of A given B ?
In this form, these two letters are the coordinates of the vertex.
What are h and k in the vertex form f(x)=a(x − h)² + k ?
This measure of spread equals Q₃ minus Q₁.
What is the Interquartile range ?
For a geometric sequence, this ratio bₙ₊₁ / bₙ remains fixed.
What is the common ratio ?
This is the way to denote that a number is multiplied by itself n times.
What is a number raised to a power n ?
This is the formula of conditional probability A given B.
What does represent the formule P(A and B) / P(A) ?
This quick graphical test tells you if a curve represents a function.
What is the vertical line test ?
This is a chart where we can see the quartiles and the maximum and minimum values.
What is a box-and-whisker plot ?
A sequence whose terms approach a single finite value as n → ∞ is described with this adjective.
What does convergent mean ?
This famous constant is irrational.
What kind of number is Pi, e, Phi ...?
This is an overlapping‑circles diagram used to display unions and intersections of events.
What is a Venn Diagram ?
This property says that if (x − α)(x − β)=0 then x=α or x=β.
What is the Null Factor law ? (or Zero product property)
The positive square root of the variance, it measures how scattered the data are on average.
What is the standard deviation ?
These two terms used in the Sequences class have not the same prononciation.
What is the difference between the words FINITE and INFINITE ?
This is the definition of the irrationnal numbers.
What are numbers that cannot be written as a fraction of two integers ?
This is the way to say that two events have no outcomes in common.
What are mutually exclusive events ?