Functions
The value of x in any function
What is the domain?
The form of this function is graphed positively or negatively this way
What is a straight line?
A representation of a linear equation where lines and grids form
What is a table?
The change of y over the change of x is race among numbers.
What is rise over run?
This formula written this way finds the change in y over the change in x
What is m = y2 - y1/x2 - x1?
The value of y in any function
What is the range?
Functions written this way as y = x^2 is not this
What is a nonlinear function?
A representation of a linear equation that is visual and informative
What is a graph?
The change of y and the change of x is the same for every ordered pair graphed
What is the constant of proportionality
This formula written this way finds proportional values with a special K
What is K = y/x?
The form a function appears in when the slope intercept form is present.
What is f(x) = x + b?
A test used to determine if a graphed line is a function
What is the vertical line test?
A representation of values of x and y written this way (x,y)
What is an ordered pair?
The change of y is a vertical arrow while the change of x is horizontal
What are similar triangles?
This letter represents the point on the coordinate plane where the line crosses the y - axis
What is b (y - intercept)?
For every value of x this value of y is dependent
What is the input?
In functions, values of x and y will never represent these
What are negative values of x and y?
Written in this way, a linear equation is ax + by = c
What is standard form?
The change is y is descending while the change in x goes to the right
What is a negative slope?
A formula proportional to equal representations of two values
what a/b = c/d?
For every value of y, the x is independent
What is the output?
What this represent for any function of the change in y over x: f (x) = x + b
What is function notation?
Written this way, a linear equation is y = mx + b
What is slope intercept form?
A change is y over a change in x where the size is greater than the original
What is a scaled up slope?
A formula that measures time as a proportional representation of distance and speed
What is t = D/r?