Question

write an equation in slope intercept form of a line passing through the point (2,-3) that is perpendicular to a line whose slope is 5

Answer 1

1) find slope. when its perpendicular, It will be a negative reciprocal to the given slope so m1= -1/m1 
m=-1

2) $y=mx+b$
    y =-1x+b 
    (-3)=-1(2)+b
     -3=-2+b
       b=-1

3)  y=-1x-1

hope I helped!