All Flashcards
Formula for gravitational force?
Formula for electromagnetic force?
Volume of a cylinder?
Volume of a cone?
How to shift a function horizontally by units?
. Right if , left if .
How to shift a function vertically by units?
. Up if , down if .
How to vertically stretch/compress a function by a factor of ?
. Stretch if , compress if .
How to reflect a function across the x-axis?
How to reflect a function across the y-axis?
General form of a rational function?
, where p(x) and q(x) are polynomials.
Difference between linear and polynomial models?
Linear: Straight line, constant rate of change | Polynomial: Curve, changing rate of change
Difference between polynomial and rational functions?
Polynomial: Can be written as a sum of terms with non-negative integer exponents. | Rational: Written as a ratio of two polynomials, may have asymptotes.
Difference between shifts and stretches of functions?
Shifts: Translate the graph without changing its shape. | Stretches: Change the shape by compressing or expanding the graph.
Difference between direct and inverse proportionality?
Direct: As one quantity increases, the other increases. | Inverse: As one quantity increases, the other decreases.
Difference between domain and range?
Domain: Set of possible input values (x). | Range: Set of possible output values (y).
Difference between continuous and piecewise functions?
Continuous: A single function defined over its entire domain without any breaks. | Piecewise: Defined by different functions over different intervals of its domain.
Difference between a vertical stretch and a horizontal compression?
Vertical Stretch: Multiplies the y-values by a factor, making the graph taller. | Horizontal Compression: Divides the x-values by a factor, making the graph narrower.
Difference between a vertical shift and a horizontal shift?
Vertical Shift: Moves the graph up or down by adding or subtracting a constant. | Horizontal Shift: Moves the graph left or right by adding or subtracting a constant from the x-value.
Difference between linear regression and polynomial regression?
Linear Regression: Finds the best-fitting straight line for the data. | Polynomial Regression: Finds the best-fitting polynomial curve for the data.
Difference between assumptions and restrictions in function modeling?
Assumptions: Simplifications made about the real-world scenario to create a tractable model. | Restrictions: Constraints on the domain or range of the function based on the real-world context.
Define a function model.
A mathematical representation of a real-world situation using a function.
What is a piecewise-defined function?
A function defined by multiple sub-functions, each applying to a certain interval of the main function's domain.
Define a rational function.
A function that can be defined as a quotient of two polynomial functions, i.e., , where p(x) and q(x) are polynomials.
What does 'inversely proportional' mean?
A relationship where one quantity decreases as another increases, often modeled by a rational function.
Define domain in the context of function models.
The set of all possible input values (x-values) for which the function is defined and makes sense in the real-world context.
Define range in the context of function models.
The set of all possible output values (y-values) that the function can produce, considering the real-world context.
What is a parent function?
The simplest form of a function family, used as a basis for transformations. Examples: , , .
Define a transformation of a function.
A change made to a parent function to fit a given data set, including shifts, stretches, compressions, and reflections.
What is linear regression?
A statistical method used to find the best-fitting linear relationship between two variables in a data set.
What is a rate of change in function modeling?
A measure of how one quantity changes with respect to another, often representing the slope of a function or its derivative.