Equazioni di I grado - la retta

PIANO CARTESIANO
https://www.youtube.com/watch?v=wgsLuN1BUMk

https://www.youtube.com/watch?v=VHODZ0Yl7P0

https://www.youtube.com/watch?v=TLW37U-Dbvw


RETTA

equazione
https://www.youtube.com/watch?v=ZFrDdW3EVNM


coeff. angolare
https://www.youtube.com/watch?v=F8JLYeaQYu8

https://www.youtube.com/watch?v=b5JMbZDpW9E