# How many forms of linear equations are there?

Apr 28, 2018

I have heard of four

#### Explanation:

Slope-intercept form: $y = m x + b$, where $m$ is the slope and $b$ is the y-intercept

Standard form: $a x + b y = c$

Point-slope form: $y - {y}_{1} = m \left(x - {x}_{1}\right)$, where $m$ is the slope and $\left({x}_{1} , {y}_{1}\right)$ is a point on the line

Intercept form: $\frac{x}{a} + \frac{y}{b} = 1$, where $a$ is the x-intercept and $b$ is the y-intercept