Studied by 25 people
Function
A mathematical relation that maps input values to output values, where the input values are the domain and the output values are the range.
Inflection Point
The point on a curve where the concavity changes from up to down or down to up.
x-intercepts
The solutions of f(x)=0, represented as (x,0) on the graph.
y-intercepts
The value of f(0) or (0,y) on the graph of a function.
Average Rate of Change (AROC)
The slope between two points on a graph of f(x).
Instantaneous Rate of Change
The rate at which y-values change when x-values change at a specific point.
Polynomial Function
A monomial or a sum of monomials.
Turning Point
A point where the function changes direction.
End Behavior
The direction of the function's graph as you move away from the origin.
Relative/Local Extrema
Points where the function changes from increasing to decreasing or vice versa.
Absolute/Global Extrema
The highest or lowest y-values on the graph.
Odd Function
Travels through the origin and follows f(-x)=-f(x).
Even Function
Reflects over the y-axis and satisfies f(-x)=f(x).
Imaginary Number
A number where the root is imaginary when the radicand is negative.
Complex Number
A number of the form a+bi where a is the real part and bi is the imaginary part.
Complex Conjugate
If (a+bi) is a factor, then (a-bi) is also a factor.
If a residual is negative, the model is an:
overestimate
If a residual is positive, the model is an:
underestimate
formula to find a residual:
ACTUAL - PREDICTED (“AP”)
If a data model is appropriate:
the residual plot should appear without a pattern
If a data model is not appropriate:
the residual plot appears to have a pattern
