Use the video link for extra help/practice
https://www.khanacademy.org/math/differential-equations/first-order-differential-equations/differential-equations-intro/v/creating-a-slope-field
https://www.youtube.com/watch?v=ls8TLPuCJUg
https://www.youtube.com/watch?v=eKXtN0SLNLU
https://www.youtube.com/watch?v=VjybVDX6Z58
HW: WS Slope Fields