Linear Relationships Big One

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

The slope is a measure of how steep a line is, calculated as the change in y divided by the change in x (rise/run).

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written as (x, y).

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

To find the slope, calculate the rise (change in y) over the run (change in x).

A positive slope indicates that as x increases, y also increases, showing an upward trend.

A negative slope indicates that as x increases, y decreases, showing a downward trend.

The formula for slope (m) is m = (y2 - y1) / (x2 - x1).

A linear equation is an equation that makes a straight line when graphed, typically in the form y = mx + b.

In the equation y = mx + b, 'm' represents the slope of the line.