Determine which differential equation corresponds to each phase line. You should be able to state briefly how you know your choices are correct. 1. dt
dy
​
=y 3
−4y 2. dt
dy
​
=4y−y 3
3. dt
dy
​
=y 2
∣y−2∣ 4. dt
dy
​
=3y−y 2
5. dt
dy
​
=y(2−y) 2
6. dt
du
​
=2y−y 2
7. dt
dy
​
=y(y−2) 8. dt
dy
​
=y 2
−3y