# Slope Intercept form of a Line

There are two possible cases to express an equation of a straight line in slope-intercept form in mathematics algebraically. The two linear equations are used as formulas in geometry to express equations of straight lines directly when slope and intercept are known.

### Slope x-intercept form

It is an equation of a straight line when a straight line intersects the horizontal axis with some slope and $x$-intercept.

$x \,=\, m’y+c$

### Slope y-intercept form

It is an equation of a straight line when a straight line intersects the vertical axis with some slope and $y$-intercept.

$y \,=\, mx+c$