Carilah persamaaan lingkaran dari pusat (5,-1) melalui (2,4)

jawab

P(a,b)= (5,-1)
r = jarak (5,-1) ke (2,4)

r² = (5-2)² + (-1 - 4)²
r² = 9 + 25
r² = 34

pers lingkaran ( x- a)² +(y-b)² = r²
(x - 5)²+ (y+1)²= 34
x² -10x + 25 + y² + 2y + 1 - 34= 0
x² + y² -10x + 2y - 8 = 0