Respuesta :

Answer:

-4

Step-by-step explanation:

y=-4x-9

y=mx+b

m=slope

Hello, hope you are having a splendid day. :)

y=-4x-9 is written in slope-intercept form (y=mx+b)

m is the slope and b is the y-intercept.

In this equation, the slope is -4 and the y-intercept is -9.

Hope it helps. Ask me if you have any queries.

~An emotional teen who helps others with joy

[tex]MagicalNature[/tex]

Good luck.