###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

##### Thank you for watching the video.

To unlock all 5,300 videos, start your free trial.

# Slope-Intercept Form of a Line - Problem 8

Alissa Fong
###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Share

A vertical line has equation x = some constant, and a horizontal line has equation y = some constant. Slope intercept form of an equation looks like y = mx + b, but in a vertical line, the slope is zero, so really, you can think of it as y = b (where b is the y-intercept.) A vertical line equation can not really be written in slope intercept form per se, so you just write it as x = constant (which will be the x-intercept.)

Transcript Coming Soon!