answer for brainliest

Answer:
The slope of the equation is -3
The y-intercept of the equation is (0,-1)
Step-by-step explanation:
For slope: [tex]\mathrm{For\:a\:line\:equation\:for\:the\:form\:of\:}\mathbf{y=mx+b}\mathrm{,\:the\:slope\:is\:}\mathbf{m}[/tex]
[tex]m=-3[/tex]
For y-intercept: [tex]y\mathrm{-intercept\:is\:the\:point\:on\:the\:graph\:where\:}x=0[/tex]
[tex]\mathrm{Solve\:}\:y=-3\cdot \:0-1:\quad y=-1[/tex]
[tex]\mathrm{Apply\:rule}\:0\cdot \:a=0\\y=-0-1\\\\\mathrm{Subtract\:the\:numbers:}\:-0-1=-1\\y=-1\\[/tex]