parallel to the plane of the horizon; at right angles to the vertical
HORIZONTAL
the numerical factor in a term
coefficient
a function of the form y = a where a is a real number
constant function
the strength of a relationship between two data sets
correlation
the output values in a function (usually y)
dependent variable
a statement that two algebraic expressions are equal
equation
determining the arithmetic value of an expression by substituting number values for the variables
evaluate
a mathematical phrase which contains one or more variables
expression
a relation in which each element in the domain corresponds with exactly one element in the range
function
the input values of a function (usually x)
independent variable
a point where the graph of a function changes direction
turning point
a symbol, usually a letter, that represents one or more numbers
variable
any value of x for which f(x) = 0
zero of a function
a point at which a graph of a function crosses the x-axis
x-intercept
a point at which a graph of a function crosses the y-axis
y-intercept
a change made to the values of a function which translates, reflects, rotates or dilates a graph of the function
transformation
the shift of a graph of a function horizontally, vertically or both
translation
a set of two or more equations using the same variables
system
ratio of vertical change to horizontal change in a non-vertical line; change in y over change in x
slope
to make less complex by distribution, reducing, combining like terms, etc.
simplify