To find the slope take your points, they should be (x1,y1) (x2,y2), proceed to subtract y2-y1 over x2-x1. after you calculate that simplify and put it in y=mx+B (the slope goes in the m position and x is usually left open)
Step-by-step explanation:
i really dont know tbh that confusing
2x² + 3x + 1
2x² + 2x + x + 1
(2x + 1)(x + 1)