Equation of the circle
= (x – 0)2 + (y – 0)2 = 52
= x2 + y2 = 25
x2 = 25 – y2
x = \(\sqrt{25-y^2}\)
y = 0 x = 5 (5, 0), (–5, 0)
y = 5 x = 0 (0, 5), (0, –5)
y = 3 x = 4 (4, 3), (4, 3)
y = 4 x = 3 (3, 4), (3, –4)
Coordinates of points on the circle (5, 0), (–5, 0), (0, 5), (0, -5), (4, 3), (4, 3), (3, 4), (3, 4).