The Slope of A Line

What is the meaning of this sign?

http://teachers.henrico.k12.va.us/math/hcpsalgebra1/module6-1.html

1. Icy Road Ahead

2. Steep Road Ahead

3. Curvy Road Ahead

4. Trucks Entering Hihway Ahead

Created with CAST's UDL Book Builder
CAST would like to thank Texthelp Inc. for use of the SpeechStream toolbar

What is the meaning of this sign? 1. Icy Road Ahead. 2. Steep Road Ahead. 3. Curvy Road Ahead. 4. Trucks Entering Highway Ahead.

look at the triangle in the sign.

What are we going to talk about in this section?