Write the equation of a line in SLOPE-INTERCEPT FORM that goes through the point: (5,-10) and perpendicular to: $\displaystyle {y}=\frac{{1}}{{3}}{x}+{3}$

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Graph the system of equations: $\displaystyle {\left\lbrace\begin{array}{cc} {y}=&\frac{{1}}{{3}}{x}+{3}\\{y}=&\text{your equation}\end{array}\right.}$