Graphing Equations Flashcard

The y-intercept is the point where a line crosses the y-axis. It is represented as (0, y).

The x-intercept is the point where a line crosses the x-axis. It is represented as (x, 0).

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

A slope of 0 indicates that the line is horizontal.

An undefined slope indicates that the line is vertical.

Rearranging gives y = -x - 1.

The equation of a vertical line is in the form x = a, where a is a constant.

The equation of a horizontal line is in the form y = b, where b is a constant.

The point (0, b) represents the y-intercept of the line.