Slope-intercept equation of a line from graph

The slope-intercept form of a line is given by the equation $$y = mx + b$$ , where $$m$$ is the slope and $$b$$ is the y-intercept.

In the equation $$y = mx + b$$ , the slope is represented by $$m$$ .

The y-intercept, represented by $$b$$ in the equation $$y = mx + b$$ , is the point where the line crosses the y-axis.

The equation of the line is $$y = 2x - 3$$ .

The slope of the line is $$-\frac{1}{2}$$ .

The equation is already in slope-intercept form: $$y = mx + b$$ , where $$m = 3$$ and $$b = 1$$ .

The slope of a horizontal line is 0.

The slope of a vertical line is undefined.

The slope is calculated using the formula $$m = \frac{y2 - y1}{x2 - x1}$$ .

A positive slope indicates that the line rises from left to right.