LINR 1 | Lesson 3 | Making Connections (Slope Directions)

Making Connections

Summary of Slope Connections

A line with a positive slope points up to the right.  

The equation of a line with a positive slope can be written in the form \(y=mx+b\), where \(m>0\).

A line with a negative slope points down to the right.

The equation of a line with a negative slope can be written in the form \(y=mx+b\), where \(m<0\).

A line with a slope of zero is horizontal.  

The equation of a horizontal line can be written in the form \(y=mx+b\), where \(m=0\).

Example: \(y=0x+3\) or \(y=3\)

A line with an undefined slope is vertical.

The equation of a vertical line can be written in the form \(x=c\), where \(c\) is a constant.

Example: \(x=2\)


Practice

Go to Practice (Graphing Lines)