points (a,5) and (9,b) are on the circle x2+y2=125. what are the values of a and b?
Points (a,5) and (9,b) are on the circle x2+y2=125. what are the values of a and b?
a^2 + 5^2 = 125 9^2 + b^2 = 125
a^2 + 25 = 125 81 + b^2 = 125
a^2 = 100 b^2 = 44
a = ± 10 b = ± √44
So...the points are (10, 5), (-10,5), (9, √44), ( 9, -√44)
+12 
