equation in slope-intercept form of a linear function f whose graph satisfies the following conditions.

equation in slope-intercept form of a linear function f  whose graph satisfies the following conditions.  

The graph of f passes through (-5, 6) and is perpendicular to the line that has an x-intercept of 3 and a y-intercept of -9. 

The graph of f passes though (-5,6) and is perpendicular to the line that has x-intercept of 3 and a y-intercept of -9