Chapter 1 Part 1 Vocab

5. A special relationship where each input value (usually x) pairs with exactly one output value (usually y). Every (x) has only one (y) partner.
7. A function whose graph is not a straight line (e.g., curves, parabolas, V-shapes). It does not change at a constant rate, and variables may have exponents other than one.
8. A function whose graph forms a straight line. It changes at a constant rate and the variables are always raised to the first power.
9. The standard way to write a linear equation, expressed as (y = mx + b). In this form, (m) represents the slope and (b) represents the (y)-intercept.
10. A measure of the steepness and direction of a line. It is the constant rate of change, often described as the "rise over run" or the change in (y) divided by the change in (x).

1. A type of data or graph made of separate, isolated points. It involves counting distinct items where values in between do not exist (e.g., number of people).
2. The set of all possible input values (the x-coordinates) for a function or relation.
3. The point where a graph crosses the vertical (y)-axis. It is the starting value of a function when the input value (x) is equal to zero.
4. The set of all possible output values (the y-coordinates) that result from a function or relation.
6. A type of data or graph with an unbroken line or curve. It involves measuring quantities where any value in between is possible (e.g., time, height, temperature).