[tex]\huge\boxed{Slope=-3,\;Y\;intercept=9.}[/tex]
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[tex]\boxed{Explanation}[/tex]
y=mx+b.
m is always where the slope is located.
b is always where the y intercept is located.
Therefore, since -3 is located at m that is the slope and 9 is located at b so that is the y intercept.
