For the linear function \(y = -3x - 6 \),

  • determine the \(x\)- and \(y\)-intercepts algebraically
  • sketch its graph
  • determine the domain and range


\(x\)-intercept
  \({\color{red}{\begin{align}
 y &= -3x - 6 \\
 0 &= -3x - 6 \\
 6 &= -3x \\
  -2 &= x  \end{align}}}\)


\((−2, 0) \)
\(y\)-intercept
  \({\color{red}{\begin{align}
 y &= -3x - 6 \\
 y &= -3\left( 0 \right) - 6 \\
 y &= -6  \end{align}}}\)


\((0, −6) \)
Domain:
Range:
Domain: {\(x | x \in \rm{R} \)}
Range: {\(y | y \in \rm{R}\)}


Graph

Window Settings
XMin −10
XMax 10
XScale
1
YMin −10
YMax 10
YScale 1