First you need to identify the slope of the perpendicular line. To do this you find the negative reciprocal slope of the line given.
The given/referenced equation is already in y=mx+b form where m=slope.
The negative reciprocal (simply flip the fraction and change the sign) of -5/3 is 3/5
The slope, or m, of the perpendicular line is:
Next, you have to use point slope form to get the equation of the line you're looking for.
Point Slope Form is y-y1=m(x-x1)
y1 is the y coordinate of the given ordered pair and x1 is the x coordinate of the given ordered pair.
Plug in all the information you know so far
Put in y=mx+b form by solving for y.
Your solution is y=3/5x+49/5