Respuesta :

Answer:

4/16 = 1/4

Step-by-step explanation:

1.y2-y1/x2-x1

2.plug in

3.-19--15/-20--4

4. 2 - makes positive

5.-19+15/-20+4

6.-4/-16

7. - cancel and get 4/16

8. reduce and get 1/4

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