Keystone Review Day 2

Relations: x values and y valued paired together (ordered pairs, graphs, tables...)

Functions: relation with one y value per x value

Domain: Inputs, X-values, Independent

Range: Outputs, Y-values, Dependent

Tests if a graph is a function

Vertical lines must never hit the graph twice

If it fails at any point, it's not a function

Where the graph crosses the y-axis

The y-value you get when x = 0

"b" in y=mx+b

Rise / run

Change in y over change in x

"m" in y = mx +b