Ratios, Rates & Slope
A relationship where the ratio of inputs to outputs is constant
What is a proportional relationship?
An ordered pattern of numbers, figures, or objects.
What is a sequence?
The y-coordinate where a graph crosses the y-axis.
What is the Y-intercept?
The first coordinate in an ordered pair (x, y).
What is input?
A function whose graph is a straight line.
What is a linear function?
The constant ratio of all y-values to their corresponding x-values, usually represented by k.
What is constant of proportionality?
An individual number, figure, or letter in a pattern.
What is a term?
The equation form written as y = mx + b.
What is slope-intercept form?
The second coordinate in an ordered pair (x, y).
What is output?
A function where both x-values and y-values increase together.
What is an increasing function?
Describes how much the dependent variable changes compared to the independent variable.
What is rate of change?
Three periods that stand for "and so on."
What is an ellipsis?
The equation form written as Ax + By = C.
What is standard form?
The set of all possible inputs of a function.
What is domain?
A function where the y-value does not change.
What is a constant function?
Describes the direction and steepness of a line, usually represented by m.
What is slope?
A graph made up of isolated points.
What is discrete?
The equation form written as y − y₁ = m(x − x₁).
What is point-slope form?
The set of all possible outputs of a function.
What is range?
A function where the dependent variable decreases as the independent variable increases.
What is a decreasing function?
Values found by subtracting consecutive y-values in a table. When equal, they indicate a linear pattern when x-values are consecutive integers.
What are first differences?
A graph that has no breaks or gaps.
What is continuous?
The x-coordinate where a graph crosses the x-axis.
What is the X-intercept?
A relation that maps each input to one and only one output.
What is a function?
A function that can be written in the form y = ax² + bx + c, where a ≠ 0.
What is a quadratic function?