Answer:
Explanation:
Center is at (0, 0) for circle you need to find the slope from center to point so that you can find perpendicular slope.
slope = (4-0)/(4-0) =1
the perpendicular slope needs to be flipped and opposite sign
m(tan)= -1 point for tan = (4,4) put in point-slope form
y-4= -1(x-4)
y-4 =-1x+4
y = -x +8